| Baldwin OF FLANDERS , Count of Flanders, Hainault and Namur, Emperor of Constantinople (? - 1205) |
|
| Mary (? - ?) |
| Burchard OF AVESNES | Margaret OF FLANDERS , Countess of Flanders & Hainault |
| ali. b. ? bp. d. ? bur. occ. rel. edu. |
ali. b. ? bp. d. 1280 bur. occ. rel. edu. |
| John OF AVESNES , Count of Hainault |