William IV, Count of Ponthieu
William IV, Count of Ponthieu | |
|---|---|
| Born | 1179 |
| Died | 4 October 1221 (aged 41–42) |
| Noble family | Bellême |
| Spouse(s) | Alys, Countess of the Vexin |
| Issue | Marie, Countess of Ponthieu |
| Father | John I, Count of Ponthieu |
| Mother | Beatrice de St Pol |
William IV Talvas (1179 – 4 October 1221) was William III, Count of Ponthieu and William IV (of the house of Belleme/Montgomery). He was Count of Ponthieu, ruler of a small province in northern France that fell under the suzerainty of the dukes of Normandy (later also kings of England) since at least the mid 11th century.