Another notable marriage a year later, that is in 1387, was that of the king’s brother Louis duke of Orleans with his cousin Valentina daughter of Galeazzo Visconti lord of Milan. The Visconti were rich, and a million of florins went to the dowry of Valentina. This marriage too brought disaster a century later when the great-grandson of Louis and Valentina, in attempting to recover the patrimony of the Visconti, was led captive to Madrid. The constable De Clisson, the victor of Rosebeke, had a bitter enemy in John de Montfort duke of Brittany. One night in Paris, De Clisson returning from an entertainment given by Louis and Valentina, was suddenly attacked and knocked senseless into the doorway of a baker’s shop. The baker dragged him in and sent for a surgeon. The king himself who was fond of the constable, came to see him. The blow was not fatal; and De Clisson had recognised his assailant. It was a well known myrmidon of the duke of Brittany. The king vowed vengeance. His uncle of Burgundy tried to pacify him and to persuade him to leave the matter to him; but the king was not to be pacified; and duke Philip was obliged to follow him into Brittany with an armed force. It was the first week in August, and the heat was intense. The king in order to suffer less from the dust, was riding separate from the rest. Suddenly he wheeled his horse and crying out Death to the traitors! charged upon the nearest of his followers. They all scattered till one of them, a tall trooper, pounced on him from behind and pinioned him. He was stark mad; and during the rest of his long and calamitous reign his reason returned only at intervals. The king’s malady arrested the expedition against De Montfort; and De Clisson who recovered from his wound, was left to be his own avenger. He was not slack about it; and if he was not so powerful as his adversary, he was the better soldier, so between them both they stirred up a civil war of such dimensions, that the duke of Burgundy who was again regent was obliged to interfere. Dame Margaret his duchess was related to the Montforts, so as he valued peace at his own fire-side he thought best to proceed with caution. He sent to his cousin of Brittany a few puncheons of the finest Burgundy wine, and followed himself with a retenue of archers and men-at-arms. De Montfort relished the wine more than he did the visitors: the latter looked suspiciously like an armament, and he promised to keep the peace.