His daughter Violante was wedded to the Duke of Clarence, son of Edward III.

of England, who received with her for dowry the sum of 200,000 golden florins, as well as five cities bordering on Piedmont.[2] It must have been a strange experience for this brother of the Black Prince, leaving London, where the streets were still unpaved, the houses thatched, the beds laid on straw, and where wine was sold as medicine, to pass into the luxurious palaces of Lombardy, walled with marble, and raised high above smooth streets of stone.

Of his marriage with Violante Giovio gives some curious details.

He says that Galeazzo on this occasion made splendid presents to more than 200 Englishmen, so that he was reckoned to have outdone the greatest kings in generosity.

At the banquet Gian Galeazzo, the bride's brother, leading a choice company of well-born youths, brought to the table with each course fresh gifts.[3] 'At one time it was a matter of sixty most beautiful horses with trappings of silk and silver; at another, plate, hawks, hounds, horse-gear, fine cuirasses, suits of armor fashioned of wrought steel, helmets adorned with crests, surcoats embroidered with pearls, belts, precious jewels set in gold, and great quantities of cloth of gold and crimson stuff for making raiment.