Counts of Ponthieu

(1) Rogerus Magnus, born 900. Married an unknown woman and had son Roger. (2) Roger FitzRogerus, born 925. Son of Rogerus and an unknown woman. Married an unknown woman and had son Rogerus. (3) Rogerus Magnus II, born 945. Son of Roger and an unknown woman. Married an unknown woman and had son Roger. (4) Roger de Montgomery, born 965 in Normandy, France. Died 1040. Married Josceline (surname unknown) and had son Hugh. (5) Hugh de Montgomery, born 990. Died February 7th, 1056. Son of Roger and Josceline. Married Josseline de Pontaudemer (daughter of Toroulf and Wevia) and had son Roger. (6) Roger de Montgomery, born 1022 in Normandy, France. Died July 27th, 1094. Son of Hugh and Josseline. Married Mabel Alvas and had son Robert. (7) Robert de Bellemme de Montgomery, born 1053. Died May 8th, 1131 while imprisioned in Warsham Castle. Son of Roger and Mabel. Married Agnes de Ponthieu and had son William. (8) William I Talvas, born 1090 in Normandy. Died June 9th, 1172. Son of Robert and Agnes. Married Alice Helie de Burgundy and had son Guy. (9) Guy de Pontheiu, born 1116. Died 1157 in Turkey, while taking part in the 2nd Crusade. Son of William and Alice. Married Ida (surname unknown) and had son John. (10) John I, Comte de Ponthieu, born 1140. Died June 30th, 1191 in Palestine while taking part in the 3rd Crusade. Son of Guy and Ida. Married Beatrice de St.Pol and had son William. (11) William II Talvas, Comte de Ponthieu, born 1176. Died October 4th, 1221. Son of John and Beatrice. Married Princess Alix Capet and had daughter Marie Jeanne. (12) Countess Marie Jeanne de Ponthieu, died 1251. Daughter of William and Alix. Married Simon, Count of Aumale.