By this artifice, he had endeavored to appease the jealousy of his neighbors, as affording them a prospect of separating England from his dominions on the continent; but when Robert demanded of him the execution of those engagements, he gave him an absolute refusal, and told him, according to the homely saying, that he never intended to throw off his clothes till he went to bed.[**] Robert openly declared his discontent, and was suspected of secretly instigating the king of France and the earl of Brittany to the opposition which they made to William, and which had formerly frustrated his attempts upon the town of Dol.

And as the quarrel still augmented, Robert proceeded to entertain a strong jealousy of his two surviving brothers, William and Henry, (for Richard was killed, in hunting, by a stag,) who, by greater submission and complaisance, had acquired the affections of their father.

In this disposition, on both sides, the greatest trifle sufficed to produce a rupture between them.
The three princes, residing with their father in the castle of L'Aigle, in Normandy, were one day engaged in sport together, and after some mirth and jollity, the two younger took a fancy of throwing over some water on Robert as he passed through the court on leaving their apartment;[***] a frolic which he would naturally have regarded as innocent, had it not been for the suggestions of Alberic de Grentmesnil, son of that Hugh de Grentmesnil whom William had formerly deprived of his fortunes, when that baron deserted him during his greatest difficulties in England.

The young man, mindful of the injury, persuaded the prince that this action was meant as a public affront, which it behoved him in honor to resent; and the choleric Robert, drawing his sword, ran up stairs, with an intention of taking revenge on his brothers.[****] [* Order.

Vitalis, p.545.Hoveden, p.457.