Mad Willem I van Holland, Count of Holland, was born circa 1165 in The Hague, Netherlands to Floris III van Holland (1140-1190) and Ada of Huntingdon (1139-1206) and died 4 February 1223 of unspecified causes. He married Aleid van Gelre (1187-1218) 1197 JL in Stavoren, Friesland, Netherlands. He married Maria van Brabant (1190-1260) . Charlemagne (747-814), Alfred the Great (849-899), Hugh Capet (c940-996), Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Rollo of Normandy (860-932)/s.


Offspring of Willem I van Holland and Aleid van Gelre (1187-1218)
Name Birth Death Joined with
Floris IV van Holland (1210-1234) 14 June 1210 The Hague, Netherlands 19 July 1234 Corbie, France Machteld van Brabant (c1200-1267)
Otto van Holland (?-1249)
Willem van Holland (?-1238)
Richardis van Holland (?-1262)
Ada van Holland (?-1258)


Preceded by
Dirk VII
Count of Holland
1203-1222 (usurping Ada)
Succeeded by
Floris IV

Footnotes (including sources)