Simon of Vermandois was a French nobleman and bishop.

He was a son of Hugh I of Vermandois. Elected bishop of Noyon in 1123, he was excommunicated in 1142 by Pope Innocent II

Pope Innocent II

Pope Innocent II , born Gregorio Papareschi, was pope from 1130 to 1143, and was probably one of the clergy in personal attendance on the antipope Clement III .-Early years:...

, for divorcing his brother Raoul I, Count of Vermandois

Raoul I, Count of Vermandois

Ralph I of Vermandois , Count of Vermandois. He was son of Hugh I, Count of Vermandois, and Adelaide, Countess of Vermandois and paternal grandson of Henry I of France and while his mother had been heiress to Herbert IV of Vermandois.His only paternal uncle was Philip I of France...

 from Eléonore of Blois

Eléonore of Blois

Eleanor of Blois was a daughter of Stephen II, Count of Blois, and of Adela of Normandy. She married Raoul I of Vermandois and became mother of Hugh II of Vermandois , count of Vermandois and of Valois, then monk in 1160...

. He subsequently went on the Second Crusade

Second Crusade

The Second Crusade was the second major crusade launched from Europe. The Second Crusade was started in response to the fall of the County of Edessa the previous year to the forces of Zengi. The county had been founded during the First Crusade by Baldwin of Boulogne in 1098...

 with Louis VII of France

Louis VII of France

Louis VII was King of France, the son and successor of Louis VI . He ruled from 1137 until his death. He was a member of the House of Capet. His reign was dominated by feudal struggles , and saw the beginning of the long rivalry between France and England...

, dying on the return journey in Seleucia

Seleucia

Seleucia was the first capital of the Seleucid Empire, and one of the great cities of antiquity standing in Mesopotamia, on the Tigris River.Seleucia may refer to:...

.

He was buried at Ourscamp Abbey, which he had founded in 1129, inviting monks from Clairvaux Abbey

Clairvaux Abbey

Clairvaux Abbey is a Cistercian monastery in Ville-sous-la-Ferté, 15 km from Bar-sur-Aube, in the Aube département in northeastern France. The original building, founded in 1115 by St. Bernard, is now in ruins; a high-security prison, the Clairvaux Prison, now occupies the grounds...

 under Waleran de Baudemont.