Lady Jane Seymour for the tomb of Margaret of Valois, queen of Navarre and also an author, which was published in 1550. Lady Jane Seymour Lady Jane Seymour (c.1541 – 19 March 1561) was an influential writer during the sixteenth century in England, along with her sisters, Lady Margaret Seymour and Anne Seymour, Countess of Warwick. Their brother was Edward Seymour, 1st Earl of Hertford. They were the children of Edward Seymour, 1st Duke of Somerset, who from 1547 was the Lord Protector of England after the death of King Henry VIII and during the minority of Jane's first cousin, King Edward VI.
Edward Seymour, 8th Duke of Somerset and wife Elizabeth Somner, daughter of John Somner, of Seend. They had at least five children. In December 1740, his father died and Seymour inherited his manors in Wiltshire and Devon. On 11 September 1744, with the unexpected death of George Seymour, Viscount Beauchamp (1725–1744), the only son of Algernon Seymour, 7th Duke of Somerset, the likelihood emerged of Seymour succeeding his distant cousin as Duke of Somerset and Baron Seymour, as the 7th Duke was then aged sixty, and his wife was past child-bearing age. On 23 November 1750 the Duke died, and Seymour duly succeeded to his titles.