I have a question regarding the cousins of Anne of Cleves, Henry VIII's fourth wife. I recently read John Guy's Queen of Scots: the True Story of Mary Stuart (entitled "My Heart is My Own" in Britain) which in turn led me to Leonie Frieda's very fine bio Catherine de Medici: Renaissance Queen of France. Interestingly enough, I discovered in the Catherine de Medici bio that Henri, Duke of Guise (Mary Stuart's cousin) was married to Catherine of Cleves and that Catherine's sister, Marie of Cleves, was married to the Bourbon prince Henry, Prince de Conde.
Now Catherine and Marie must have been cousins to Anne, but how? Was Anne of Cleves' father the brother to the grandfather or even the great-grandfather of the aforementioned Cleves sisters? Biography and genealogy, whether royal or of the nobility, holds a great fascination for me and I read everything I can on these subjects like a crazy man! Any enlightenment will be welcome.