(1) He has/had a relationship with Constanza de Castille.
Child(ren):
(2) He is married to Blanche Plantagenet.
They got married on May 19, 1359 at Queen's Chapel, Reading Abbey, Berkshire, England, he was 19 years old.
Child(ren):
John I Duke of Lancaster Plantagenet | ||||||||||||||||||||||||||||||||||
(1) | ||||||||||||||||||||||||||||||||||
Constanza de Castille | ||||||||||||||||||||||||||||||||||
(2) 1359 | ||||||||||||||||||||||||||||||||||
Blanche Plantagenet |
http://trees.ancestry.com/pt/AMTCitationRedir.aspx?tid=158940490&pid=2316/ Ancestry.com