Despite his pleas, he was sentenced to die by Isabella I of Castile, an event which has been widely reported as idiosyncratic of the Queen's personality.
[1][2] In that context, Yáñez has been described as "a member of the petty nobility whose ancient responsibility for local justice the Monarchs sough to suppress".
[3] He was granted lands in Medina del Campo and made Lord of Villalba de Adaja and Foncastín in 1450.
Alonso's son and successor was Pedro Fernández de Lugo, who died in Santa Marta, Colombia, in 1536.
A descendant of Alonso's sister was Francisco Bahamonde de Lugo, Governor of Puerto Rico and Cartagena, who died in office in 1574.