Ursion I Yevres de Château-Landon, Lord of Château-Landon, Castellan of Nemours, was born circa 1090 to Foulques de Château-Landon (c1055-1129) and Aveline de Bitry (1070-) and died 2 January 1148 of unspecified causes. He married Aveline de Montfaucon (c1105-) . He married Aveline de Châtillon-sur-Marne . Charlemagne (747-814)/s.
|Offspring of Ursion I de Château-Landon and Aveline de Montfaucon (c1105-)|
|Aveline de Château-Landon (1130-1196)||1130||1196||Gauthier I de Villebéon (1130-1205)|