*Floris IV Count of Holland
born 24 June 1210 's-Gravenhage, Zuid Holland, Netherlands
died 19 July 1234 Rhijnsburg, Zuid Holland, Netherlands

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

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

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

*Mahaut (Maud or Mathilde) de Brabant
born about 1200 Brabant, Belgium
died 21 December 1267
buried Loosduinen, Zuid Holland, Netherlands
married before 06 December 1224

*Aleida Countess of Holland born 1226 's-Hertogenbosch, Noord-Brabant, Netherlands
died 9 April 1283 Valenciennes, Nord, France
Willem de Holland born 1227 's-Hertogenbosch, Noord Brabant, Netherlands
died 28 January 1256 Noord Hoogwoud, Noord Holland, Netherlands
Floris Count of Holland born about 1228 's-Hertogenbosch, Noord-Brabant, Netherlands
died 24 March 1258
Margaretha Countess of Holland born about 1230 's Hertogenbosch, Noord-Brabant, Netherlands
died 26 March 1277
Machteld Countess of Holland born about 1232 's-Hertogenbosch, Noord-Brabrant, Netherlands

biographical and/or anecdotal:

notes or source: