Juan de Lanuza y Garabito,
Viceroy of Sicily (1495 – 1507), was the youngest of the 3 sons of Ferrer de Lanuza I, 1st Sieur of
Azaila,
Cosculluela, Escuer, Arguisal and Esun de Basa, who was towards 1412, Bayle General of
Aragón, when there was a succession crisis in the
Aragonese and who was appointed on 1 July 1439, dying in 1480, by king
Alfonso V of Aragón, reigning since 1416, a "Justicia" of the kingdom, some sort of
Justice, a position he would hold until December 1478.