Adelaide of Guelders (c. 1182 – 1218) was the daughter of Count Otto I of Guelders and his wife, Richardis, the daughter of Duke Otto I of Bavaria and Agnes of Loon. Also known as Adelaide of Bellich or Alice of Guelders.
Adelaide of Guelders
|Noble family||House of Wassenberg|
|Spouse(s)||William I, Count of Holland|
|Father||Otto I, Count of Guelders|
|Mother||Richardis of Bavaria|
- Floris IV (24 June 1210 in The Hague–19 July 1234 in Corbie, France), succeeded his father as Count of Holland
- Otto (d. 1249), Regent of Holland in 1238–1239, Bishop of Utrecht
- William (d. 1238), Regent of Holland in 1234–1238.
- Richarda (d. 1262)
- Ada (d. 1258), Abbess at Rijnsburg from 1239 until her death