William I of Holland ^{1 2}

  Noted events in his life were:

• Acceded: Count of Holland, 1203.

William married Adelaide of Geldern in 1197. (Adelaide of Geldern was born in 1187 and died in 1218.)

William next married Marie de Brabant, daughter of Henry I of Brabant and Matilda of Boulogne, in Mar 1220. (Marie de Brabant was born about 1191 and died after 9 Mar 1260.)