 In 1530 Cousin finished the windows for Sens Cathedral, the subject chosen being the "Legend of St. Eutropius".He also painted the windows of many of the noble châteaux in and around the city.The latest date on any of his Sens work, 1530, points to this as the year he went to Paris, where he began work as a goldsmith; but the amount and kind of his productions in the precious metals are alike unknown.