The Duke and Duchess of Clarence, Cardiff Castle. From WikiCommons, no copyright.

Another bad day for the Nevilles’ — 18 February 1478 — death of the Duke of Clarence, husband of Lady Isabella Neville, both cousins of Elizabeth Parr (grandmother of Queen Catherine). The Duke was granted the titles of 1st Earl of Salisbury and Warwick, which had last been held by Isabella’s father, Richard, who was the 16th Earl of Warwick and 6th Earl of Salisbury. George, Duke of Clarence was the third son of Richard Plantagenet, 3rd Duke of York, and Lady Cecily Neville (great-aunt of Isabella Neville and Elizabeth Parr), and the brother of kings Edward IV and Richard III. He played an important role in the dynastic struggle known as the Wars of the Roses. He is also remembered as the character in William Shakespeare’s play Richard III who was drowned in a butt of Malmsey wine. The Duke and Duchess were parents to the last Plantagenet’s which included Lady Margaret, suo jure 8th Countess of Salisbury, who was executed by Henry VIII.