William I "The Crazy" Count Of Holland
William I "The Crazy" was born in 1167 in The Hague, Zuid-Holland, Netherlands.¹   He died at the age of 55 on February 4th, 1222 in Rijnsburg, Zuid-Holland, Netherlands.¹ 

 Adelaide of Gelders
Adelaide of was born in 1187 in Zutphen, Zutphen, Gelderland, Netherlands.²   She died at the age of 31 on February 4th, 1218 in Rieneck, Main-Spessart, Bayern, Germany.² 

 Floris Iv Holland
Floris Iv was born on June 24th, 1210 in The Hague, Zuid-Holland, Netherlands.¹   He died at the age of 24 on July 19th, 1234 in Corbie, Eure, Haute-Normandie, France.¹