The dance music played for Princess Elizabeth when she meets Henry VII is "ly bens distonys". It is one of the very few dance tunes with choreographies that survive from late 15th century England, and appears in the Gresley Manuscript (John Banys notebook). The manuscript itself is in the Derbyshire records office, and its significance as an important early dance source was not identified until the 1990s.
After Henry VII becomes King, Cecily Neville, the mother of Richard III calls him the descendant of a servant. There are several ways she could be referring to. One is his descent from Katherine De Roet who worked in the nursery of John of Gaunt and became his third wife or Henry's grandfather Owen Tudor who was a courtier to Catherine of Valois and married her after her husband died.
Cecily Neville calls Henry VII descendant of a servant, but she was wrong. She was referring to Owen Tudor who was married to Henry's grandmother Catherine of Valois and worked in her household. However Henry's father Edmund Tudor was more than likely the biological son of Edmund Beaufort who was the first cousin of Henry's mother Margaret.
Henry talks about marrying Princess Cecilly. Princess Cecilly was actually married when Henry Tudor took the throne. King Richard III married her off to Ralph Scrope in 1485 the younger brother of the 6th Baron Scrope of Masham. Richard had her marry someone below her standing so she couldn't come against him for the throne. This marriage was later annulled in 1486. She then went on to marry John Wells in 1487/88