Leuven | Old University of Leuven | Katholieke Universiteit Leuven | Catholic University of Leuven | Catholic University of Leuven (1834–1968) | Arthur Godfrey | Godfrey Kneller | Charles Godfrey Leland | University of Leuven | Godfrey of Bouillon | Oud-Heverlee Leuven | Godfrey | John Godfrey | Sir Godfrey Copley, 2nd Baronet | My Man Godfrey | Godfrey Reggio | Godfrey Ho | Fred Godfrey | Robert John Godfrey | Private Charles Godfrey | Godfrey Stillman Rockefeller | Godfrey of Brabant | Godfrey Morgan, 1st Viscount Tredegar | Godfrey, Illinois | Godfrey Bloom | Sir Godfrey Copley | Peter Godfrey-Smith | Paul Godfrey | Godfrey Meynell | Godfrey McHugh |
The known siblings of Gertrude include (1) Gebhard III, Count of Sulzbach, (2) Adelheid, Abbess of Niedernburg at Passau, (3) Bertha of Sulzbach, Byzantine Empress, (4) Luitgarde, wife first of Godfrey II of Leuven and secondly of Hugo XII, Count of Dagsburg and Metz, and (5) Matilda of Sulzbach, wife of Engelbert III of Istria.