In 1105, however, Robert's continual stirring of discord with his brother in England as well as civil disorder in Normandy itself prompted Henry to invade Normandy.
Orderic reports on an incident at Easter 1105 when Robert was supposed to hear a sermon by the venerable Serlo, Bishop of Sées.
Robert spent the night before sporting with harlots and jesters, and while he lay in bed sleeping off his drunkenness his unworthy friends stole his clothes.
He awoke to find himself naked and had to remain in bed and missed the sermon.

In 1106, Henry defeated Robert's army decisively at the Battle of Tinchebray and claimed Normandy as a possession of the English crown, a situation that endured for almost a century.
Captured after the battle, Robert was imprisoned in Devizes Castle for twenty years before being moved to Cardiff.

In 1134, Robert died in Cardiff Castle in his early eighties.
Robert Curthose, sometime Duke of Normandy, eldest son of the Conqueror, was buried in the abbey church of St. Peter in Gloucester.
The exact place of his burial is difficult to establish – legend states that he requested to be buried before the High Altar.
His effigy carved in bog oak, however, lies on a mortuary chest decorated with the attributed arms of the Nine Worthies (missing one – Joshua, and replaced with the arms of Edward the Confessor).
The effigy dates from about 100 years after his death and the mortuary chest much later.
The church subsequently has become Gloucester Cathedral.
In 1105, however, Robert's continual stirring of discord with his brother in England as well as civil disorder in Normandy itself prompted Henry to invade Normandy. Orderic reports on an incident at Easter 1105 when Robert was supposed to hear a sermon by the venerable Serlo, Bishop of Sées. Robert spent the night before sporting with harlots and jesters, and while he lay in bed sleeping off his drunkenness his unworthy friends stole his clothes. He awoke to find himself naked and had to remain in bed and missed the sermon.
In 1106, Henry defeated Robert's army decisively at the Battle of Tinchebray and claimed Normandy as a possession of the English crown, a situation that endured for almost a century. Captured after the battle, Robert was imprisoned in Devizes Castle for twenty years before being moved to Cardiff.
In 1134, Robert died in Cardiff Castle in his early eighties. Robert Curthose, sometime Duke of Normandy, eldest son of the Conqueror, was buried in the abbey church of St. Peter in Gloucester. The exact place of his burial is difficult to establish – legend states that he requested to be buried before the High Altar. His effigy carved in bog oak, however, lies on a mortuary chest decorated with the attributed arms of the Nine Worthies (missing one – Joshua, and replaced with the arms of Edward the Confessor). The effigy dates from about 100 years after his death and the mortuary chest much later. The church subsequently has become Gloucester Cathedral.
Robert Curthose