*Willem I de Holland
born about 1167 's-Gravenhage, Zuid Holland, Netherlands
died about February 1222

father:
*Floris III Florence "Crusader" de Holland
born 1141 's-Gravenhage, Zuid Holland, Netherlands
died 1 August 1190 Antioch, Holy Land

mother:
*Ada of Scotland
born about 1146 Scotland
died 11 January 1215/16
married 28 August 1162

siblings:
Ada de Holland born about 1163 's-Gravenhage, Zuid Holland, Netherlands
died after 1205
Margaretha de Holland born about 1164 's-Gravenhage, Zuid Holland, Netherlands died 3 November 1203
Dirk VII de Holland born about 1165 's-Gravenhage, Zuid Holland, Netherlands died 4 November 1203 Dordrecht, Zuid Holland, Netherlands
Floris de Holland born about 1169 's-Gravenhage, Zuid Holland, Netherlands died 30 November 1210
Boudewijn de Holland born about 1171 's-Gravenhage, Zuid Holland, Netherlands died 19 July 1204
Robrecht de Holland born about 1173 's-Gravenhage, Zuid Holland, Netherlands
Beatrix de Holland born about 1175 's-Gravenhage, Zuid Holland, Netherlands
Elisabeth de Holland born about 1177 's-Gravenhage, Zuid Holland, Netherlands died 27 August
Hedwig de Holland born about 1179 's-Gravenhage, Zuid Holland, Netherlands died 13 January
Agnes de Holland born about 1181 's-Gravenhage, Zuid Holland, Netherlands died 22 April 1228

spouse:
*Aleid van Gelre (Guelders)
born about 1187 Zutphen, Gelderland, Netherlands
died 4 February 1218

children:
Ada de Holland born about 1202 's-Gravenhage, Zuid Holland, Netherlands died 15 June 1258
Richardis de Holland born about 1203 's-Gravenhage, Zuid Holland, Netherlands died 3 January 1262
Willem de Holland born about 1206 's-Gravenhage, Zuid Holland, Netherlands died 30 August 1238
Otto de Holland born about 1208 's-Gravenhage, Zuid Holland, Netherlands died 3 April 1249
*Floris IV Count of Holland born 24 June 1210 's-Gravenhage, Zuid Holland, Netherlands
died 19 July 1234 Rhijnsburg, Zuid Holland, Netherlands

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com