Sigebrand was born about 1030, the son of unknown parents. The place is not known.
His wife was Agnès de Montreuil, who he married in ABT 1050. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1030 |
|
Note 1
fils de Guillaume et Héliarde