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O´Higgins, Pablo / Salt Lake City, Utah, USA, 1904 - Mexico City, Mexico, 1983
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Obá, Antonio / Ceilândia, Brasilia, Brazil, 1983
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Obiols i Palau, Josep / Sarriá, Barcelona, Spain, 1894 - Barcelona, Spain, 1967
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Obiols, Ricard / Barcelona, Spain, 1894 - 1967
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Ocampo, Isidoro / Veracruz, Mexico, 1910 - Mexico City, Mexico, 1983
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Ocampo, Manuel / Quezon City, Metropolitan Manila, Philippines, 1965
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Ocaña (José Pérez Ocaña) / Cantillana, Seville, Spain, 1947 - 1983
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Odenbach, Marcel / Cologne, Germany, 1953
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Oehlen, Albert / Krefeld, Germany, 1954
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Oiticica, Hélio / Rio de Janeiro, Brazil, 1937 - 1980
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Okariz, Itziar / San Sebastián, Spain, 1965
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Okumura, Lydia / Oswaldo Cruz, Brazil, 1948
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Oldenburg, Claes / Stockholm, Sweden, 1929
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Olesen, Henrik / Esbjerg, Denmark, 1967
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Olivares /
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Olivares, Alfonso de / Hernani, Guipuzcoa, Spain, 1898 - Madrid, Spain, 1936
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Oliver, Isabel / Valencia, Spain, 1946
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Ono, Yoko / Tokyo, Japan, 1933
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Ontañón, Francisco / Barcelona, Spain, 1930 - Madrid, Spain, 2008
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Ontañón, Santiago / Santander, Spain, 1903 - Madrid, Spain, 1989
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Opie, Catherine / Sandusky, Ohio, USA, 1961
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Oppenheim, Dennis / Electric City, Washington, USA, 1938 - New York, USA, 2011
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Oppermann, Anna / Eutin, Germany, 1940 - Celle, Germany, 1993
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Orozco, José Clemente / Ciudad Guzmán, Mexico, 1883 - Mexico City, Mexico, 1949
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Ortega Pichardo, Manuel Luis / Jerez de la Frontera, Cádiz, Spain, 1888 - Madrid, Spain, 1943
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Ortega, Damián / Mexico City, Mexico, 1967
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Ortega, José / Arroba de los Montes, Ciudad Real, Spain, 1921 - Paris, France, 1990
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Ortega, Pelayo / Mieres, Asturias, Spain, 1956
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Ortiz de Zevallos, Daniela / Cusco, Peru, 1985
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Ortiz Echagüe, Antonio / Guadalajara, Spain, 1883 - Buenos Aires, Argentina, 1942
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Ortiz Valiente, Manuel / Madrid, Spain, 1918 - 1998
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Ortiz, Aitor / Bilbao, Spain, 1971
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Ortiz, Aurora / Santiago de Chile, Santiago, Santiago Metropolitan Region, Chile, 1949
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Ortiz, Jorge / Medellín, Colombia, 1948
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Orús, José / Saragossa, Spain, 1931 - 2014
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Ory, Carlos Edmundo de / Cadiz, Spain, 1923 - Thézy-Glimont, France, 2010
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Oteiza, Jorge / Orio, Guipúzcoa, Spain, 1908 - San Sebastián, Spain, 2003
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Otero, Alejandro / El Manteco, Venezuela, 1921 - Caracas, Venezuela, 1990
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Ottinger, Ulrike / Germany, 1942
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Ouka Leele (Bárbara Allende Gil de Biedma) / Madrid, Spain, 1957 - 2022
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Oursler, Tony / New York, USA, 1957
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