Guillaume I de Ponthieu was born circa 915 to Herbouin II de Ponthieu (c890-c945) and died circa 980 of unspecified causes.
Children
Name | Birth | Death | Joined with |
Hildouin III de Ponthieu (c933-c1009) | 933 | 1009 | Hersende la Pieuse de Ramerupt (c930-?) Adélaïde de Blois (c916-c963) |
Footnotes (including sources)
‡ General |