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.
Duke of Somerset from England and his estates were seized. At the Restoration his estates were restored, and he claimed the dukedom of Somerset as promised to him by Charles I. However this claim was rejected by the House of Lords and so was the title of Earl of Glamorgan. This enabled King Charles II to grant the Ducal title to the fourth creation family, the Seymours, who descend from the country's effective Regent, the Lord Protector in 1547. Edward Seymour (1538–1621) was son and heir of Edward Seymour, 1st Duke of Somerset, from his second marriage. He was created the Earl of