Pierre was born about 1045, the son of unknown parents. The place is not known.
He died in 1116. The place is not known.
His wife was Hélène de Roye, who he married in ABT 1070. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1045 |
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| Death | 1116 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur et châtelain de Saint-Just |
Note 1
son of Wallérand de St. Just, Seigneur de St. Just & Chaussée and Jeanne de Clermont-en-Beauvaisis