19989754. Duke Pierre Mauclerc de Dreux & 19989755. Alix of Brittany
1212, King Philip II of France arranged for Pierre, his cousin, to marry Alix. [Pierre a ggs of King Louis VI.]
7/14/1223, Louis VIII succeeded as king of France.
1229, Peter with the counts of Boulogne and Dreux [Robert, Peter’s brother] attacked Champagne. (S) Aristocratic Life in Medieval France, Baldwin, 2002, P64.