Carlos Navarro, one of the exhibition's curators of "The Other’s Gaze. Spaces of difference" stands next the painting "El Cid" by French artist Rosa Bonheur at Madrid's Prado Museum, Spain, June 22, 2017. Picture taken June 22, 2017. REUTERS/Juan Medina.

Spanish matadores David Mora and Manuel Jesus "El Cid" look at a bull during a bullfight at The Maestranza bullring in the Andalusian capital of Seville, southern Spain April 11, 2016. REUTERS/Marcelo del Pozo

Spanish matador Manuel Jesus "El Cid" (L) performs a pass to a bull during a bullfight at The Maestranza bullring in the Andalusian capital of Seville, southern Spain April 6, 2016. REUTERS/Marcelo del Pozo

Spanish matador Manuel Jesus "El Cid" (L) drives a sword into a bull during a bullfight at The Maestranza bullring in the Andalusian capital of Seville, southern Spain April 6, 2016. REUTERS/Marcelo del Pozo

Spanish matador Manuel Jesus "El Cid" (L) runs after driving a sword into a bull during a bullfight at The Maestranza bullring in the Andalusian capital of Seville, southern Spain April 6, 2016. REUTERS/Marcelo del Pozo

Spanish matador Manuel Jesus "El Cid" looks as a bull falls on the arena during a bullfight at The Maestranza bullring in the Andalusian capital of Seville, southern Spain April 17, 2015. REUTERS/Marcelo del Pozo TPX IMAGES OF THE DAY

Spanish matador Manuel Jesus "El Cid" (L) waits in front of an assistant before getting into the arena to bullfight at the Maestranza bullring in the Andalusian capital of Seville, southern Spain September 28, 2014. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY TPX IMAGES OF THE DAY)

Spanish bullfighter Manuel Jesus "El Cid" (L) warms up next to apprentice bullfighter Francisco de Asis "Lama de Gongora" (C) and former bullfighter Jose Antonio Campuzano on the arena before the start of a "tentadero" (a small bullfight to check the bravery of calves and heifers which are not killed) during the first International Biennial of bullfighting at Reservatauro Ronda cattle ranch in Ronda, near Malaga February 17, 2013. Spain's parliament voted on February 12 to consider protecting bullfighting as a national pastime, angering animal rights campaigners and politicians in two regions where the sport is banned. REUTERS/Jon Nazca (SPAIN - Tags: ANIMALS POLITICS SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" performs a pass to a heifer during a "tentadero" (a small bullfight to check the bravery of calves and heifers which are not killed) during the first International Biennial of bullfighting at Reservatauro Ronda cattle ranch in Ronda, near Malaga February 17, 2013. Spain's parliament voted on February 12 to consider protecting bullfighting as a national pastime, angering animal rights campaigners and politicians in two regions where the sport is banned. REUTERS/Jon Nazca (SPAIN - Tags: ANIMALS POLITICS SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" is seen through a small window of a door as he performs a pass to a heifer during a "tentadero" (a small bullfight to check the bravery of calves and heifers which are not killed) during the first International Biennial of bullfighting at Reservatauro Ronda cattle ranch in Ronda, near Malaga February 17, 2013. Spain's parliament voted last Tuesday to consider protecting bullfighting as a national pastime, angering animal rights campaigners and politicians in two regions where the sport is banned. REUTERS/Jon Nazca (SPAIN - Tags: ANIMALS POLITICS SOCIETY TPX IMAGES OF THE DAY)

Spanish matador Manuel Jesus "El Cid" waits to perform a pass to a bull during a bullfight in The Maestranza bullring in Seville April 25, 2012. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY ANIMALS)

Spanish matador Manuel Jesus "El Cid" prepares to perform a pass to a bull during a bullfight in The Maestranza bullring in Seville April 25, 2012. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY ANIMALS)

Spanish matador Manuel Jesus "El Cid" performs a pass to a bull during a bullfight in The Maestranza bullring in Seville April 22, 2012. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY ANIMALS)

A statue of Spain's Rodrigo Diaz, or "El Cid" is seen during a cold winter day in Burgos, northern Spain February 2, 2012. REUTERS/Felix Ordonez (SPAIN - Tags: ENVIRONMENT)

Actors dressed as El Cid hero of medieval Spain, perform a fight during a festival of "Weekend Cid" in downtown Burgos October 1, 2011. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY ENTERTAINMENT) BEST QUALITY AVAILABLE

Actors dressed as El Cid hero of medieval Spain perform a fight during a festival of "Weekend Cid" (Cid weekend) in downtown Burgos October 1, 2011. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY ENTERTAINMENT)

Actor dressed as El Cid hero of medieval Spain, performs a tournament during a festival of "Weekend Cid" (Cid weekend) in downtown Burgos October 1, 2011. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY ENTERTAINMENT)

Actors dressed as El Cid hero of medieval Spain perform a fight during a festival of "Weekend Cid" (Cid weekend) in downtown Burgos October 1, 2011. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY ENTERTAINMENT)

Actors dressed as El Cid hero of medieval Spain, perform a fight during a festival of "Weekend Cid" in downtown Burgos October 1, 2011. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY TPX IMAGES OF THE DAY) ENTERTAINMENT) FOR BEST QUALITY IMAGE ALSO SEE: GM1E87J1JFF01

Actors dressed as El Cid hero of medieval Spain perform a trial during a festival of "Weekend Cid" (Cid weekend) in downtown Burgos October 1, 2011. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY)

People dressed as El Cid, a hero of medieval Spain, attend a parade in front of the Arco de Santa Maria in Burgos, October 1, 2011 during the "Weekend Cid" festival. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY)

Spanish matador Manuel Jesus "El Cid" faces a bull during a bullfight in Almeria, southeastern Spain, August 24, 2011. REUTERS/Francisco Bonilla (SPAIN - Tags: SOCIETY ANIMALS)

Spanish matador Manuel Jesus El Cid stands before participating in a bullfight in the Maestranza bullring in Seville April 28, 2011. REUTERS/Javier Diaz (SPAIN - Tags: ANIMALS SOCIETY)

Spanish matador Manuel Jesus El Cid falls in front of a bull during a bullfight in the Maestranza bullring in Seville April 28, 2011. REUTERS/Javier Diaz (SPAIN - Tags: ANIMALS SOCIETY IMAGES OF THE DAY)

Spanish matador Manuel Jesus El Cid performs a pass as a bull charges in the arena during a bullfight in the Maestranza bullring in Seville April 28, 2011. REUTERS/Javier Diaz (SPAIN - Tags: ANIMALS SOCIETY)

Spanish bullfighter Manuel Jose 'El Cid' makes a pass to a bull during a bullfight at the La Santamaria bullring in Bogota February 20, 2011. REUTERS/John Vizcaino (COLOMBIA - Tags: ANIMALS SOCIETY)

Spanish bullfighters Julian Lopez 'El Juli' (L) and Manuel Jesus 'El Cid' are hoisted onto the shoulders of workers in a bullring after their bullfighting performance in Bogota February 20, 2011. REUTERS/ John Vizcaino (COLOMBIA - Tags: ANIMALS SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" gestures to the audience after killing a bull during a bullfighting festival at Canaveralejo bullring in Cali December 30, 2010. REUTERS/Jaime Saldarriaga (COLOMBIA - Tags: ANIMALS SOCIETY)

A statue of Spain's Rodrigo Diaz, or "El Cid", is covered in snow in Burgos, northern Spain, December 3, 2010. Snow and icy weather has blanketed large parts of Europe, disrupting air, road and train travel. REUTERS/Felix Ordonez (SPAIN - Tags: ENVIRONMENT SOCIETY)

Spanish matador Manuel Jesus "El Cid" stands before performing a pass to a bull during a bullfight in the Maestranza bullring in Seville September 25, 2010. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY)

Spanish matador Manuel Jesus "El Cid" washes his face after killing a bull during a bullfight in the Maestranza bullring in Seville September 25, 2010. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY)

Spanish matador Manuel Jesus "El Cid" and Fernandez Pineda stand during a bullfight in the Maestranza bullring in Seville September 25, 2010. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY)

Spanish matador Manuel Jesus "El Cid" stands in front of his assistants before the start of a bullfight in the Maestranza bullring in Seville September 25, 2010. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY)

Spanish matador Manuel Jesus "El Cid" performs a pass to a bull during a bullfight in the Maestranza bullring in Seville September 25, 2010. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY ANIMALS)

Spanish bullfighter Manuel Jesus 'El Cid' prepares to drive a sword into a bull to kill it during a bullfight in the northern Spanish town of Gijon August 11, 2010. REUTERS/Eloy Alonso (SPAIN - Tags: SOCIETY ANIMALS)

Spanish bullfighter Manuel Jesus Cid "El Cid" performs a pass during the seventh bullfight of the San Fermin festival in Pamplona July 13, 2010. REUTERS/Vincent West (SPAIN - Tags: SOCIETY ANIMALS IMAGES OF THE DAY)

Spanish bullfighter Manuel Jesus Cid "El Cid" performs a pass during the seventh bullfight of the San Fermin festival in Pamplona July 13, 2010. REUTERS/Vincent West (SPAIN - Tags: SOCIETY ANIMALS)

Spanish bullfighter Manuel Jesus Cid "El Cid" performs a pass during the seventh bullfight of the San Fermin festival in Pamplona July 13, 2010. REUTERS/Vincent West (SPAIN - Tags: SOCIETY ANIMALS)

A leg wound of Spanish bullfighter Manuel Jesus "El Cid" is seen during a bullfight at the El Plantio bullring in Burgos, northern Spain June 27, 2010. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" is gored by a bull during a bullfight at the bullring El Plantio in Burgos, northern Spain, June 27, 2010. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" is gored by a bull during a bullfight at the bullring El Plantio in Burgos, northern Spain, June 27, 2010. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" is gored by a bull during a bullfight at the bullring El Plantio in Burgos, northern Spain, June 27, 2010. REUTERS/Felix Ordonez (SPAIN - Tags: SOCIETY)

Spanish matador Jesus Manuel 'El Cid' drives a sword into a bull to kill it during a bullfight in The Maestranza bullring in Seville April 21, 2010. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY ANIMALS IMAGES OF THE DAY)

Spanish matador Jesus Manuel 'El Cid' drives a sword into a bull to kill it during a bullfight in The Maestranza bullring in Seville April 21, 2010. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY ANIMALS IMAGES OF THE DAY)

Spanish matador Jesus Manuel 'El Cid' performs a pass to a bull during a bullfight in The Maestranza bullring in Seville April 21, 2010. REUTERS/Marcelo del Pozo (SPAIN - Tags: SOCIETY ANIMALS)

Spanish bullfighter "El Cid" performs a pass to a bull during a bullfight at The Maestranza bullring in Seville April 15, 2010. REUTERS/Javier Barbancho (SPAIN - Tags: SOCIETY ANIMALS)

Spanish bullfighter Manuel Jesus "El Cid" waits before the start of the second "Picassiana" bullfight at the Malagueta bullring in Malaga, southern Spain April 3, 2010. The bullfighters wear suits with special decorations in honour of Spanish artist Pablo Ruiz Picasso. REUTERS/Jon Nazca (SPAIN - Tags: SOCIETY ANIMALS IMAGES OF THE DAY)

Spanish bullfighter Manuel Jesus "El Cid" performs a pass to a bull during the second "Picassiana" bullfight at the Malagueta bullring in Malaga, southern Spain April 3, 2010. The bullfighters wear suits with special decorations in honour of Spanish artist Pablo Ruiz Picasso. REUTERS/Jon Nazca (SPAIN - Tags: SOCIETY ANIMALS)

Spanish matador Manuel Jesus "El Cid" performs a pass on a bull during a bullfight at the Plaza de Acho bullring in Lima November 22, 2009. REUTERS/Enrique Castro-Mendivil (PERU ANIMALS SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" is tossed by a bull at the Plaza de Toros on the fourth day of the San Fermin festival in Pamplona July 9, 2009. REUTERS/Eloy Alonso (SPAIN SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" is lifted up by the bull's horn at the Plaza de Toros on the fourth day of the San Fermin festival in Pamplona July 9, 2009. REUTERS/Eloy Alonso (SPAIN SOCIETY)

Spanish bullfighter Manuel Jesus "El Cid" is gored by a bull at the Plaza de Toros on the fourth day of the San Fermin festival in Pamplona July 9, 2009. REUTERS/Eloy Alonso (SPAIN SOCIETY IMAGES OF THE DAY)

Spanish bullfighter Manuel Jesus 'El Cid' performs during a bullfight at the bullring El Plantio in Burgos, northern Spain July 1, 2009. REUTERS/Felix Ordonez (SPAIN ANIMALS SOCIETY)

Spanish bullfighter Manuel Jesus 'El Cid' performs during a bullfight at the bullring El Plantio in Burgos, northern Spain July 1, 2009. REUTERS/Felix Ordonez (SPAIN ANIMALS SOCIETY)

Spanish bullfighter Manuel Jesus 'El Cid' performs during a bullfight at the bullring El Plantio in Burgos, northern Spain July 1, 2009. REUTERS/Felix Ordonez (SPAIN ANIMALS SOCIETY)

Spanish bullfighter Manuel Jesus "EL Cid" adjusts his montera next to his assistants before starting a bullfight in The Maestranza bullring in Seville April 25, 2009. REUTERS/Marcelo del Pozo (SPAIN SOCIETY ANIMALS)

Spanish bullfighter Manuel Jesus "EL Cid" performs a pass to a bull during a bullfight in The Maestranza bullring in Seville April 25, 2009. REUTERS/Marcelo del Pozo (SPAIN ANIMALS SOCIETY IMAGES OF THE DAY)

Spanish bullfighter Manuel Jesus "El Cid" adjusts his montera before starting a bullfight in The Maestranza bull-ring in Seville April 23, 2009. REUTERS/Marcelo del Pozo (SPAIN SOCIETY ANIMALS)

Spanish bullfighter Manuel Jesus "El Cid" prepares before starting a bullfight in The Maestranza bull-ring in Seville April 23, 2009. REUTERS/Marcelo del Pozo (SPAIN SOCIETY ANIMALS)