Viscounts of Tuy Vizcondes de Tuy Created by Ferdinand V the Catholic, king of Aragon Decree date 25-07-1473 First holder Pedro Alvarez de Sotomaior (Pedro Madruga), 1st count of Caminha * c. 1420 Records #4 Holders Family filter On/Off 1 Pedro Alvarez de Sotomaior (Pedro Madruga), 1st count of Caminha * c. 1420 2 Diego del Alcazar y Guzmán, 7th marquess of Peñafuente * bp 1849 3 Pedro del Alcazar y Caro, 3rd viscount of Tuy * 1928 4 Juan Pedro del Alcazar y Gomez-Acebo, duke of Santo Buono * 1956 Corrections and Updates To suggest a correction or an update. Click Here