Stephen was Keeper of Sauvey Castle in June 1220. He was Keeper of Essex and Hertfordshire in November 1220. He was Keeper of the Honor of Boulogne in December 1220. He was Keeper of Hedingham Castle, Essex in March 1222. He was Keeper of Lincolnshire in March 1222. He was Keeper of Lincoln Castle and Lincolnshire in December 1223. He was Keeper of Hertford Castle in January 1224. He was Keeper of Northampton Castle in 1229. He held the office of Sheriff of Bedfordshire, Buckinghamshire, Leicestershire, Northamptonshire and Worcestershire in 1230. He was a Guardian of England during King Henry III's absence in France in 1230. He held the office of Justiciar of England in 1232. He was Commissioner to negotiate with Llewelyn, King of North Wales in 1232. He was Keeper of Kenilworth Castle in May 1232. He was Keeper of Northampton Castle in July 1232.
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