Tolong jelaskan mengenai Silsilah dari Charles I dari Flandria

Galbert of Bruges, The Murder of Charles the Good, translated, with an introduction and notes by James Bruce Ross ISBN 0-8020-6479-5

Laurent Feller, L'assassinat de Charles le Bon comte de Flandre: 2 mars 1127, Paris, Perrin, 2012, ISBN 978-2-262-03528-0.