 Although Thomas Seymour was named Lord High Admiral as a concession, he was consumed by jealousy of his brother's power and influence and worked to unseat and replace his brother as Lord Protector.Thomas Seymour sought to over-turn his brother's position on the regency council by his personal influence over the young king, and also possibly, by making a royal marriage.Although his name had been linked to Mary Howard, Duchess of Richmond, he was still unmarried at the time of the King's death.