At the death of Don Jacobo Fitz-James Stuart, 17th Duke of Alba and 10th Duke of Berwick, the English title would have been inherited by his nephew Don Fernando FitzJames Stuart, 15th Duke of Peñaranda de Duero (1922–1971), and subsequently by Fernando's son Don Jacobo FitzJames Stuart, 16th Duke of Peñaranda de Duero and current head of the House of FitzJames (born in 1947 and without children).