| Name | Reign | Family | Spouse | 
| Baldwin I | c 863 | son of Charles the Bald of France | |
| Baldwin II | |||
| Arnold I | 918-65 | ||
| Baldwin III | |||
| Baldwin IV | 988-1035 | 1 Ogiva, dau Frederick  of Ardenne 
 2 Eleanor dau Richard II, Normandy  | 
|
| Baldwin V | 1035-67 | son of Baldwin IV | Adela, dau Robert II of France | 
| Baldwin VI | 1067-70 | son of Baldwin V | Richidis, widow of Herman of Brabant | 
| Arnold III the Unfortunate | 1070-1 | son of Baldwin VI | |
| Robert I (the Frisian) | 1071-93 | son of Baldwin V | Gertrude, dau Bernard of Saxony | 
| Robert II (of Jerusalem) | 1093-1111 | son of Robert I | |
| Baldwin VII | 1111-9 | son of Robert II | |
| Charles | 1120-7 | son of Adela, dau Robert I, + St Cnut of Denmark | |
| William Clito | 1127-8 | son of Robert of Normandy | |
| Margaret II | -1280 | ||
| Guy of Dampierre | 1280-1305 | son of Margaret II | |
| Robert | 1305-22 | son of Guy | |
| Louis de Maele | -1384 | ||
| Philip the Bold | 1384-1404 | son in law of Louis | 
| Leopold I | 1831-65 | son of Francis of Saxe-Coburg + uncle of Victoria of England | 1 Charlotte, daughter of George IV  of England 
 2 Louise, daughter of Louis Philippe of France  | 
| Leopold II | 1865-1909 | son of Leopold I | |
| Albert I | 1909-34 | nephew of Leopold II | |
| Leopold III | 1934-51 abd | son of Leopold II | |
| Baudouin/Boudewijn | 1951-9 | son of Leopold III | Fabiola de Mora y Aragon | 
This collection of names was compiled by Kate Monk and is ©1997, Kate Monk.
Copies may be made for personal use only.