John I, Count of Ponthieu

John I, Count of Ponthieu
Born	c. 1140
Died	1191
Noble family	House of Bellême
Spouse(s)	Beatrice of Saint-Pol
Father	Guy II of Ponthieu
Mother	Ida

John I of Ponthieu (c. 1140–1191) was the son of Guy II of Ponthieu and succeeded him as Count of Ponthieu in 1147.

John attacked Normandy in 1166 and 1168, in response to King Henry II of England's confiscation of the castles at Alencon, La Roche-Mabile and the Alenconnais. Henry, angry with John's rebellion, led his army on a path of destruction across Vimeu, the south-west part of Ponthieu.

John married Beatrice of Saint-Pol, they had:

...
Wikipedia