Aleister Portillon

 was the thirteenth Earl of Wetstone. His ancestor was Claude Portillon. He had the complete works of Lord Byron including a biography of Mary Shelley. He helped Mary find information on the Varaxyls, in the TARDIS library. He was overseeing the demolition of Tranchard's Folly when he was attacked by a Varaxyl and killed. (AUDIO: The Witch From the Well)