Eleanor (The Time Warrior)
From Tardis Wiki, the free Doctor Who reference
Lady Eleanor was the wife of Sir Edward of Wessex. She aided the Third Doctor against Irongron and Linx. She sent Hal to assassinate Irongron, but Hal failed.
Lady Wessex believed the Doctor to be a magician. She was described by Irongron as being "a narrow hipped vixen." (TV: The Time Warrior)