Isabelle married Guillaume de Poissy 1243. Guillaume (son of Robert II de Poissy and Isabeau de Neufbourg) was born Abt 1220; died Abt 1270. [Group Sheet]
Robert married Isabelle de Marly 1261. Isabelle (daughter of Bouchard II de Marly and Agnès de Beaumont-Gâtinais) was born Abt 1245; died 3 Sep 1292; was buried 4 Sep 1292. [Group Sheet]
Mahaud married Hervé de Léon 1281. Hervé (son of Hervé de Léon and Jeanne de Rohan) was born Abt 1255; died 12 Apr 1304. [Group Sheet]
Hervé married Jeanne de Montmorency 1307. Jeanne (daughter of Érard de Montmorency and Jeanne de Longueval) was born Abt 1286; died 1341. [Group Sheet]