In the words of historian M.L. Bruce, both Thomas and Elizabeth "developed feelings of dislike" for their daughter Mary. In later years, Mary's romantic involvements would only further strain this relationship. Around 1520, the Boleyns managed to arrange Mary's marriage to William Carey, a respected and popular man at court. It was sometime after the wedding that Mary became mistress to Henry VIII (the exact dates as to when the affair started and ended are unknown), although she never held the title of "official royal mistress," as the post did not exist in England. It has long been rumoured that one or both of Mary Boleyn's children were fathered by Henry and not Carey. Some historians, such as Alison Weir, now question whether Henry Carey was fathered by the King. Few of Henry's mistresses were ever publicly honoured, except Elizabeth Blount, who was mentioned in Parliament and whose son, Henry Fitzroy, was created Duke of Richmond and Somerset in an elaborate public ceremony in 1525. Henry's relationship with Mary was so discreet that within ten years, some observers were wondering if it had ever taken place.