Gertrude of Flanders, Duchess of Lorraine
| Gertrude of Flanders | |
|---|---|
| Landgravine of Brabant Countess of Louvain Countess of Brussels | |
| Reign | 1090–1095 |
| Duchess of Lorraine | |
| Reign | 1096–1115 |
| Born | c. 1070 |
| Died | 1117 |
| Spouse | Henry III, Count of Leuven Theodoric II, Duke of Lorraine |
| Issue | Theodoric of Alsace and more |
| House | Flanders |
| Father | Robert I, Count of Flanders |
| Mother | Gertrude of Saxony |
Gertrude of Flanders (c. 1070–1117), was a Countess of Louvain and Landgravine of Brabant by marriage to Henry III, Count of Leuven, and a Duchess of Lorraine by marriage to Theodoric II, Duke of Lorraine. At the time the duchy was the upper Lorraine, since 959 separated from the duchy of Lower Lorraine.