WHOSYERDAD-E Who's Your Daddy?
Wikigenealogy

Interactive tree of Gertrude of Lorraine

Count Dirk VI of Holland 11141157
Gertrude of Lorraine 10861144
Count Floris II of Holland 10851121
Count Dirk V of Holland 10521091
Count Floris I de Holland 10171061
Princess Gertrude of Saxony 10281113
Count Dirk III de Holland 9811039
Otehilde of Germany 9831044
Count Arnulf I de Gand 951996
Liutgarde Kleves de Luxembourg 9631005