Notes from http://members.pcug.org.au/~ronwells/330-9.htm
GÉRARD FLAMENS, Count of Teisterbant
GOSWIN I, Lord of Heinsburg (see under Heinsburg for descendants)
DIETRICH FLAMENS
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Sources:
1. Title: AncA
Publication: "Ancient Ancestors"
Note:
ANCIENT ANCESTORS with MODERN DESCENDANTS (8th Edition) is a compilation providing lines of descent from some 3,000 ancient and early medieval families to millions of present day Europeans and Americans. These ancestors include members from most of the former ruling dynasties in Europe and the Middle East, with some going back to 6th century BCE kingdoms in the Near East.
2. Title: RFC
Publication: "Royalty for Commoners",
Note:
This book lists all of the known ancestors of John of Gaunt, which amounts to most of the Medieval royalty of Europe. Also see the following article: "A Mediaeval Miscellany: Commentaries on Roderick W. Stuart's Royalty for Commoners," The American Genealogist 69 (April 1994)