On this date in our family history . . . the 21st day of March . . . in the year 1076 . . . Duke Robert I of Burgundy dies . . . he is a 26th great-grandpa to our Josephine . . . Google Books. Burgundies: Webster's Quotations, Facts and Phrases. by Icon Group. Robert I, Duke of Burgundy. Robert I Capet (1011 - 21 March 1076) was duke of Burgundy between 1032 to his death. Robert was son of King Robert II of France and brother of Henry I. In 1031, after the death of his father the king, Robert participated in a rebellion against his brother Henry. He was supported by his mother, Queen Constance d'Arles. Peace was achieved when Robert was given Burgundy. Other events on this date . . . the 21st day of March . . .