Guy III of Châtillon, Count of Saint-Pol (died 1289) was a French nobleman, and was a younger son of

Hugh I, Count of Blois Hugh I, Count of Blois, also known as ''Hugh I of Châtillon'' ( – 9 April 1248)Theodore Evergates, ''The Aristocracy in the County of Champagne, 1100-1300'', (University of Pennsylvania Press, 2007), 223. was jure uxoris Count of Blois from 123 ...

, and

Mary, Countess of Blois Mary, Countess of Blois, also known as ''Marie of Avesnes'', (1200–1241) was countess of Blois from 1230 to 1241. She was the daughter of Walter of Avesnes and Margaret of Blois.(FR)Henri Platelle, ''Présence de l'au-delà: une vision médié ...

. While his elder brother

John I of Châtillon John I of Châtillon (died 5 May 1280 in Chambord), was count of Blois from 1241 to 1280 and lord of Avesnes. Biography He was the son of Hugh I of Châtillon and Marie of Avesnes. In 1254, John married Alix of Brittany, Dame de Pontarcy (d. ...

succeeded to their mother's

County of Blois The County of Blois was a feudal principality centred on Blois, south of Paris, France. It was created just after king Clovis I conquered Roman Gaul around AD 500. Between the 8th and the 13th centuries, it was amongst the most powerful vassal ...

, Guy was given their father's county of

Saint-Pol-sur-Ternoise Saint-Pol-sur-Ternoise (, literally ''Saint-Pol on Ternoise''; vls, Sint-Pols-aan-de-Ternas) is a commune in the Pas-de-Calais department in northern France. It is the seat of the canton of Saint-Pol-sur-Ternoise. The population of the town i ...

at his death in 1248. On January 16, 1255, he married Matilda of Brabant, Countess of Artois,"Maude of Brabant (1224–1288)." Women in World History: A Biographical Encyclopedia. 2002. HighBeam Research. (October 14, 2012). http://www.highbeam.com/doc/1G2-2591306344.html daughter of

Henry II, Duke of Brabant Henry II of Brabant ( nl, Hendrik, french: Henri; 1207 – February 1, 1248) was Duke of Brabant and Lothier after the death of his father Henry I in 1235. His mother was Matilda of Boulogne. Henry II supported his sister Mathilde's son, ...

and

Marie of Hohenstaufen Maria of Swabia (1199/1200 – 29 March 1235) was a member of the powerful Hohenstaufen dynasty of German kings. Family Maria of Hohenstaufen was born in Arezzo, Tuscany, Italy around 1199/1200. She was the second daughter of Philip of Swabia an ...

, and thereafter was a supporter of his brother-in-law Henry III against

Guelders The Duchy of Guelders ( nl, Gelre, french: Gueldre, german: Geldern) is a historical duchy, previously county, of the Holy Roman Empire, located in the Low Countries. Geography The duchy was named after the town of Geldern (''Gelder'') in pr ...

. They had: * Hugh II, Count of Blois.M. A. Pollock, ''Scotland, England and France After the Loss of Normandy, 1204-1296'', (The Boydell Press, 2015), 184. * Guy IV, Count of Saint-Pol. *

Jacques Ancient and noble French family names, Jacques, Jacq, or James are believed to originate from the Middle Ages in the historic northwest Brittany region in France, and have since spread around the world over the centuries. To date, there are over ...

, lord of Leuze-Châtillon. * Beatrix (d. 1304), married

John I of Brienne, Count of Eu John I of Brienne (died 12 June 1294) was the son of Alphonso of Brienne and Marie de Lusigan. His mother was the heiress of Eu, Seine-Maritime, and he succeeded his father as Count of Eu in 1270. He married Beatrice, the daughter of Guy III, ...

* Jeanne, married Guillaume III de

Chauvigny Chauvigny (; Poitevin dialect, Poitevin: ''Chôvigni'') is a Communes of France, commune in the Vienne Departments of France, department in the Nouvelle-Aquitaine Regions of France, region in western France. Chauvigny is located east of Poitiers ...

, Lord of

Châteauroux Châteauroux (; ; oc, Chasteurós) is the capital city of the French department of Indre, central France and the second-largest town in the province of Berry, after Bourges. Its residents are called ''Castelroussins'' () in French. Climate ...

He joined the

Eighth Crusade The Eighth Crusade was the second Crusade launched by Louis IX of France, this one against the Hafsid dynasty in Tunisia in 1270. It is also known as the Crusade of Louis IX against Tunis or the Second Crusade of Louis. The Crusade did not see ...

(1270) and the ill-fated

Crusade of Aragón The Aragonese Crusade or Crusade of Aragon, a part of the larger War of the Sicilian Vespers, was declared by Pope Martin IV against King Peter III of Aragon in 1284 and 1285. Because of the recent conquest of Sicily by Peter, Martin declared ...

Philip III of France Philip III (1 May 1245 – 5 October 1285), called the Bold (french: le Hardi), was King of France from 1270 until his death in 1285. His father, Louis IX, died in Tunis during the Eighth Crusade. Philip, who was accompanying him, returned ...

References

{{s-end Chatillon, Guy III of Saint Pol, Guy II de Chatillon, comte de Saint Pol, Guy II de Chatillon, comte de 1289 deaths Year of birth unknown House of Châtillon