Isabella of Angouleme was 12 or 13 (perhaps a bit too young) when she wed this king in 1200
Her father was the youngest son of the late king Edward III and his queen 
Philippa ... From 1399 she was recognised as Countess of Buckingham, ... Of her 
daughters Philippa died young and Anne would marry ..... Richard was the 2nd 
and youngest son of King John of England and Isabella of Angoulme.