Camilla, Duchess of Cornwall holds a balloon, a present for her new-born grandchild, during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

Camilla, Duchess of Cornwall holds a balloon, a present for her new-born grandchild, during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

Camilla, Duchess of Cornwall holds a balloon, a present for her new-born grandchild, during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

Camilla, Duchess of Cornwall holds a balloon, a present for her new-born grandchild, during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

Camilla, Duchess of Cornwall holds a present for her new-born grandchild, during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

Camilla, Duchess of Cornwall holds a balloon, a present for her new-born grandchild, during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

Camilla, Duchess of Cornwall holds a balloon, a present for her new-born grandchild, during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

Deputy medical director Saskia Etzold offers presents to Camilla, Duchess of Cornwall, for her new-born grandchild during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

Deputy medical director Saskia Etzold offers presents to Camilla, Duchess of Cornwall, for her new-born grandchild during her visit to Charite's Violence Protection Outpatient Clinic in Berlin, Germany, May 7, 2019. Ralf Hirschberger/Pool via Reuters 

A grandchild and a son of Abdel Ghaffar prepare food inside the restaurant, which was founded in 1948, in Benghazi, Libya February 5, 2019. Picture taken February 5, 2019. REUTERS/Esam Omran Al-Fetori 

A grandchild and a son of Abdel Ghaffar prepare food inside the restaurant, which was founded in 1948, in Benghazi, Libya February 5, 2019. Picture taken February 5, 2019. REUTERS/Esam Omran Al-Fetori 

Residents gather next to the coffin of woman and a body of her grandchild killed when the Sume river burst its banks, after a landslide rolled down the slopes of Mt. Elgon through the Nanyinza village in Bududa district, Uganda, October 12, 2018. REUTERS/Newton Nambwaya 

World's oldest living married couple Masao Matsumoto and Miyako Matsumoto pose for a photo with their great-grandchild and their care staff at a nursing house in Takamatsu, Kagawa prefecture, Japan September 4, 2018. REUTERS/Kwiyeon Ha 

Maya Fernandez (C), President of the chamber of Deputies and grandchild of the late former Chilean President Salvador Allende, is seen inside of the session room at congress next to images of missing people during a protest against the decision of the Supreme Court to grant parole to human right abusers during Chilean dictatorship, in Valparaiso, Chile August 2, 2018. REUTERS/Rodrigo Garrido 

Maya Fernandez, President of the chamber of Deputies and grandchild of the late former Chilean President Salvador Allende, is seen inside of the session room at congress next to images of missing people during a protest against the decision of the Supreme Court to grant parole to human right abusers during Chilean dictatorship, in Valparaiso, Chile August 2, 2018. REUTERS/Rodrigo Garrido 

Ethnic Dukha nomad Jargal Gombosed holds her grandchild outside her family's reindeer pen in the forest near the village of Tsagaannuur, Khovsgol aimag, Mongolia, April 20, 2018. The pen holds the reindeer herd of the families of four of her children. REUTERS/Thomas Peter SEARCH "REINDEER HERDERS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Tchitita Mutombo carries her internally displaced and severely acute malnourished grandchild as they await medical attention at the Presbyterian hospital in Dibindi zone of Mbuji Mayi in Kasai Oriental Province in the Democratic Republic of Congo, March 16, 2018. Picture taken March 16, 2018. REUTERS/Thomas Mukoya 

Tchitita Mutombo carries her internally displaced and severely acute malnourished grandchild as they await medical attention at the Presbyterian hospital in Dibindi zone of Mbuji Mayi in Kasai Oriental Province in the Democratic Republic of Congo, March 16, 2018. Picture taken March 16, 2018. REUTERS/Thomas Mukoya 

Tchitita Mutombo carries her internally displaced and severely acute malnourished grandchild as they await medical attention at the Presbyterian hospital in Dibindi zone of Mbuji Mayi in Kasai Oriental Province in the Democratic Republic of Congo, March 16, 2018. Picture taken March 16, 2018. REUTERS/Thomas Mukoya 

Gol Bahar, a 45-year-old Rohingya refugee poses for a picture with her grandchild at her shelter in the camp for widows and orphans inside the Balukhali camp near Cox's Bazar, Bangladesh, December 5, 2017. Gol Bahar, from Labadug village in Buthidaung township, said her husband, who was collecting wood as the area came under attack from Myanmar military, is among many missing Rohingya men from their village. Gol Bahar now lives with her two daughters and more than 230 others at the camp for Rohingya widows and orphans. Two of her other, married daughters, also found shelter with their families at Balukhali camp and she sometimes takes care of their children. REUTERS/Damir Sagolj SEARCH "ROHINGYA WIDOWS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

World Bank President Jim Yong Kim and his grandchild are seen at the G20 summit in Hamburg, Germany July 7, 2017. REUTERS/Wolfgang Rattay 

Elvira Urdaneta (58) holds her grandchild Josue Urdaneta (2) at her hovel in Paraguaipoa, Venezuela March 1, 2017. Picture taken March 1, 2017. REUTERS/Marco Bello 

A man walks behind a boy in a park in Brussels, Belgium June 27, 2017. REUTERS/Eric Vidal 

Noah Wa'ed, 48, an Iraqi Christian displaced from Qaraqosh, who fled with his family when the Islamic State occupied his village in 2014, holds his grandchild as he poses for a photograph at his shop in Ashti 2 camp in Erbil, Iraq, February 12, 2017. Wa'ed remembers how the resident of Qaraqosh, a village with a majority of Christians, were helping each other, how the rich helped the poor, how they had first welcomed the displaced Christians from Mosul before all were all forced to leave. During their escape, the family lived in a church for three days, in a school for three months, later in a hotel and then a house they shared with several families. "Life inside the camp is good but I hope to return to my village if life returns to normal," he said. REUTERS/Muhammad Hamed SEARCH "MOSUL VENDORS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Displaced Iraqi woman Farah Taha, 60, poses for a photograph with her three sons, her daughter-in-law, her six-month-old grandchild as well as the brother and sister of her daughter-in-law, in the family tent in Hammam al-Alil camp south of Mosul, Iraq March 29, 2017. Taha says she has been unable to find any work to support her family since fleeing their Mosul home. REUTERS/Suhaib Salem SEARCH "DISPLACED REFUGE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Vice President Mike Pence hosts a swearing in ceremony for U.S. Ambassador to Israel David Friedman (C), as his grandchild poses for a picture, at the Executive office in Washington, U.S., March 29, 2017. REUTERS/Carlos Barria TPX IMAGES OF THE DAY 

Vice President Mike Pence hosts a swearing in ceremony for U.S. Ambassador to Israel David Friedman (C), as his grandchild poses for a picture, at the Executive office in Washington, U.S., March 29, 2017. REUTERS/Carlos Barria 

Vice President Mike Pence hosts a swearing in ceremony for U.S. Ambassador to Israel David Friedman (C), as his grandchild poses for a picture, at the Executive office in Washington, U.S., March 29, 2017. REUTERS/Carlos Barria 

U.S. President Donald Trump walks with his grandchildren Arabella and Joseph to Marine One upon his departure from the White House in Washington, U.S., February 17, 2017. REUTERS/Carlos Barria 

U.S. President Donald Trump walks with his grandchildren Arabella and Joseph to Marine One upon his departure from the White House in Washington, U.S., February 17, 2017. REUTERS/Carlos Barria TPX IMAGES OF THE DAY 

Uzbekistan's Prime Minister and interim President Shavkat Mirziyoyev and his grandson visit a polling station during a presidential election in Tashkent, Uzbekistan, December 4, 2016. REUTERS/Anvar Ilyasov/Pool 

Antonio Castro, grandson of Cuba's late President Fidel Castro, speaks to students of Havana University as they march to Revolution Square in Havana, Cuba, November 28, 2016. The small sign reads, "Thanks for everything Commander." REUTERS/Alexandre Meneghini 

A woman prays for her grandchild taking the annual college entrance examinations at a Buddhist temple in Seoul, South Korea, November 17, 2016. REUTERS/Kim Kyung-Hoon 

A man named Black Horse holds his grandson during a protest against the Dakota Access pipeline near the Standing Rock Indian Reservation near Cannon Ball, North Dakota, U.S. November 13, 2016. REUTERS/Stephanie Keith 

Russian designer Valentin Yudashkin with his daughter Galina and grandson Anatoly appear at the end of his Spring/Summer 2017 ready-to-wear collection during the Moscow Fashion Week in Moscow, Russia, October 18, 2016. REUTERS/Sergei Karpukhin 

Russian designer Valentin Yudashkin with his daughter Galina and grandson Anatoly appear at the end of his Spring/Summer 2017 ready-to-wear collection during the Moscow Fashion Week in Moscow, Russia, October 18, 2016. REUTERS/Sergei Karpukhin 

Host Barbara Davis and Jamie Foxx dance with some of her granddaughters during the Carousel of Hope Ball in Beverly Hills, California U.S. October 8, 2016.Ê REUTERS/David McNew 

Inesia Laguerre cradles her grandchild at the shelter set up in the Lycee Philippe Guerrier ahead of Hurricane Matthew in Les Cayes, Haiti, October 2, 2016. REUTERS/Andres Martinez Casares 

Richard Rossi and his 4 year old great grandson Justice wade through water in search of higher ground after their home took in water in St. Amant, Louisiana, U.S., August 15, 2016. REUTERS/Jonathan Bachman TPX IMAGES OF THE DAY

Richard Rossi and his 4 year old great grandson Justice wade through water in search of higher ground after their home took in water in St. Amant, Louisiana, U.S., August 15, 2016. REUTERS/Jonathan Bachman

Marisa Vesco smiles as she sinks her face into the chest of her granddaughter, the photographer Gaia Squarci in Cossato, Italy, February 5, 2015. This was the day Gaia learned her grandmother suffered from incurable liver cancer. REUTERS/Gaia Squarci SEARCH "ITALY CANCER" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES.

A woman holds her grandson at a camp for internally displaced people near Sanaa, Yemen, August 10, 2016. REUTERS/Khaled Abdullah 

U.S. Vice President Joe Biden and his granddaughters look at a koala held by a keeper during a visit to Taronga Zoo in Sydney, Australia, July 19, 2016. REUTERS/Jessica Hromas/Pool 

U.S. Vice President Joe Biden and his granddaughters look at a koala held by a keeper during a visit to Taronga Zoo in Sydney, Australia, July 19, 2016. REUTERS/Jessica Hromas/Pool 

U.S. Vice President Joe Biden and his granddaughters look at a koala held by a keeper during a visit to Taronga Zoo in Sydney, Australia, July 19, 2016.REUTERS/Jessica Hromas/Pool 

A man and his grandchild walk on the street at Tokyo's Sugamo district, an area popular among the Japanese elderly, in Japan June 15, 2016. REUTERS/Issei Kato 

Jackie Archer (L), Kathy Wilcox (R) and her granddaughter Aaliyah Wilcox-Chid, 6, relax as they wait in line for the box office to open for tickets to boxing legend Muhammad Ali's "jenazah" (Muslim funeral prayer) service at Freedom Hall in Louisville, Kentucky, U.S. June 7, 2016. REUTERS/John Sommers II 

U.S. Democratic presidential candidate Hillary Clinton smiles when asked to talk about her grandchild during a campaign stop at a small restaurant in Vallejo, California, United States June 5, 2016. REUTERS/Mike Blake

Cypriot President Nicos Anastasiades casts his vote at a polling station with his grandchild and his wife Andri (2nd L) during parliamentary elections in Limassol, Cyprus May 22, 2016. REUTERS/Yiannis Kourtoglou 

Delberta Seminole Eagleman stands with grandchild, 4-year-old Shawnee, whom she raises along with 5 others on the Fort Peck Indian Reservation, in Wolf Point, Montana, April 28, 2016. Picture taken April 28, 2016. REUTERS/Ellen Wulfhorst 

Presidential candidate Andreas Kohl (R), his daughter Hemma, his wife Adelheid and his granddaughter Neha (L-R) arrive at a polling station in Vienna, Austria, April 24, 2016. REUTERS/Leonhard Foeger 

U.N. Secretary General Ban Ki-moon (C) embraces U.S. Secretary of State John Kerry (R) who holds his two-year-old granddaughter Isabelle Dobbs-Higginson after signing the Paris Agreement on climate change at United Nations Headquarters in Manhattan, New York, U.S., April 22, 2016. REUTERS/Carlo Allegri TPX IMAGES OF THE DAY

The grandmother of the kidnapped Elamine family children carries a picture of one of her grandchildren in the family home in Beirut, Lebanon April 7, 2016. Lebanese police have detained an Australian film crew and accused them of involvement in a kidnapping of two children from their Lebanese father on behalf of their Australian mother. REUTERS/Mohamed Azakir TPX IMAGES OF THE DAY 

Pink Rickshaw driver Parveen Bibi talks to her granddaughter Laiba as she studies, as her daughter Nosheen stands behind them at their home in Lahore, Pakistan November 16, 2015. Pakistan's first women-only rickshaw service was meant to provide its staff with a new way of gaining financial independence and its passengers with the chance of a ride without being groped and harassed by male drivers. But, after just a year in business, the "Pink Rickshaw" in the Punjabi city of Lahore, is struggling. REUTERS/Mohsin Raza SEARCH "PINK RICKSHAW" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES. 

Marcia Espinosa, 55, plays with her grandchild Francisco Espinosa, 2, as she watches pictures of U.S. President Barack Obama being shown during a local TV news program in her home in Havana, March 19, 2016. REUTERS/Alexandre Meneghini 

A Syrian woman poses with her grandson, who was born in Al Zaatari refugee camp in the Jordanian city of Mafraq, near the border with Syria March 7, 2016. Since the beginning of the Syrian crisis, 50-80 Syrian children were born in the Zaatari refugee camp each week, according to the official website of UNHCR. REUTERS/ Muhammad Hamed SEARCH "HAMED BORN" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES

France's President Francois Hollande (C) and Estela de Carlotto (back L), head of the Human Rights Grandmothers of Plaza de Mayo, next to Carlotto's grandchild Igancio Hurban, throw flowers into the waters of the Rio de La Plata as they tour the Memorial Park in Buenos Aires, February 25, 2016. REUTERS/Enrique Marcarian 

France's President Francois Hollande (C) and Estela de Carlotto (back L), head of the Human Rights Grandmothers of Plaza de Mayo, next to Carlotto's grandchild Igancio Hurban, throw flowers into the waters of the Rio de La Plata as they tour the Memorial Park in Buenos Aires, February 25, 2016. REUTERS/Enrique Marcarian 

Richard Branson (R) stands with his son Sam (L) and daughter-in-law Isabella (2nd R) as he watches his one-year-old granddaughter Eva-Deia (2nd L) break a milk bottle to dedicate the new Space Ship Two, a six-passenger two-pilot vehicle meant to ferry people into space, that replaces a rocket destroyed during a test flight in October 2014, in Mojave, California, United States, February 19, 2016. REUTERS/Lucy Nicholson TPX IMAGES OF THE DAY

Atef, 2, Shahrour's grandchild, stands in the courtyard of his grandfather's home in the besieged town of Arbeen, in the Damascus suburbs, Syria February 6, 2016. Shahrour said he developed diabetes at the beginning of the war in Syria. A lack of insulin led to his medical condition worsening and his right foot had to be amputated. Recently he also suffered a stroke that paralysed half his face. He and part of his extended family, a total of 18 people, live together and struggle to get by. REUTERS/Bassam Khabieh SEARCH "SHAHROUR" FOR ALL IMAGES