Ernesto de Zulueta e Isasi (26 April 1892, in Bilbao – 9 September 1969, in Madrid), Spanish Diplomat.
Born in Bilbao, son of Ernesto de Zulueta y Samá, of the Marquesses of Álava Viscounts of Casa Blanca (La Granja de San Ildefonso, 10 July 1855 - Bilbao, 2 December 1919) and wife and cousin (m. Algorta, 5 September 1881) María de Isasi y Murgoitio, of the Marquesses of Barambio (Bilbao, 10 September 1854 - 1 November 1934).[1]