Adelaide of Guelders
Adelaide of Guelders  | |
|---|---|
| Born | c. 1182 | 
| Died | 1218 | 
| Buried | Rijnsburg Abbey | 
| Noble family | House of Wassenberg | 
| Spouse(s) | William I, Count of Holland | 
| Issue | |
| Father | Otto I, Count of Guelders | 
| Mother | Richardis of Bavaria | 
Adelaide of Guelders (Dutch: Aleid, c. 1182 – 1218) was the daughter of Count Otto I of Guelders and his wife, Richardis. Also known as Adelaide of Bellich or Alice of Guelders.
Probably around 1198, in Stavoren, she married Count William I of Holland. They had five children:
- 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
 
Adelaide died in 1218, while her husband was away on the Fifth Crusade. She was buried in Rijnsburg Abbey.