Alfonso V of Portugal
Source picture: Wikipedia
His parents were Edward of Portugal and Eleanor of Aragon.
There are family ties with Austria: Alfonso V was the uncle of Emperor
Maximilian I of Austria. The mother of Maximilian I was Eleanor of Portugal,
a sister of King Alfonso V...
Alfonso V married twice. His first wife was his cousin Isabella of Coimbra.
After her death he married Joanna La Beltraneja (although this marriage wasn't
recognized by the Papacy).
Alfonso V died in 1481 in Lisbon.