William I, Count of Holland
b:
d:
b:
d:
| PARENT (M) Floris III, Count of Holland | |||
| Birth | |||
| Death | |||
| Marriage | 28 AUG 1162 | to Ada | |
| Father | Dirk VI, Count of Holland | ||
| Mother | Sophia of Rheineck | ||
| PARENT (F) Ada | |||
| Birth | ABT 1146 | Scotland | |
| Death | AFT 1206 | ||
| Marriage | 28 AUG 1162 | to Floris III, Count of Holland | |
| Father | Henry of Scotland | ||
| Mother | Ada de Warenne | ||
| CHILDREN | |||
| M | William I, Count of Holland | ||
| Birth | |||
| Death | |||
| Marriage | 1197 | to Adelaide of Guelders at Stavoren | |
| PARENT (M) William I, Count of Holland | |||
| Birth | |||
| Death | |||
| Marriage | 1197 | to Adelaide of Guelders at Stavoren | |
| Father | Floris III, Count of Holland | ||
| Mother | Ada | ||
| PARENT (F) Adelaide of Guelders | |||
| Birth | ABT 1182 | ||
| Death | 1218 | ||
| Marriage | 1197 | to William I, Count of Holland at Stavoren | |
| Father | Otto I, Count of Guelders | ||
| Mother | Richardis of Bavaria | ||
| CHILDREN | |||
| M | Floris IV, Count of Holland | ||
| Birth | |||
| Death | |||
| Marriage | to Matilda of Brabant, Countess of Holland | ||
+ Adelaide of Guelders b: ABT 1182 d: 1218
3 Adelaide of Holland, Countess of Hainaut b: ABT 1230
+ Edward III b: 13 NOV 1312 d: 21 JUN 1377
7 John of Gaunt, 1st Duke of Lancaster b: 6 MAR 1340 d: 3 FEB 1399
+ Blanche
8 Henry Beaufort b: ABT 1375 d: 11 APR 1447
