John I of Ponthieu (c. 1140–1191) was the son of Guy II of Ponthieu and succeeded him as Count of Ponthieu in 1147. He married Beatrice of Saint-Pol, and was succeeded by his son William IV Talvas.[1]
| Preceded by Guy II |
Count of Ponthieu 1147–1191 |
Succeeded by William IV Talvas |