John

John was born in 1478.  John's father was Ferdinand V Koenig von Aragon and his mother was Isabella Koenigin von Castile.  His maternal grandparents were John II (Juan II) Koenig von Castile and Isabella von Portugal. He had four sisters named Isabella, Joanna the Mad, Mary and Catherine.  He was the second oldest of the five children.  He died at the age of 19 in 1497.