Character:Dilys Derwent

From UnknowableWiki

Dilys Derwent was a Healer at St. Mungo's (1722-1741) and later became a Hogwarts Headmistress (1741-1768). She was, according to Dumbledore, one of Hogwarts' most celebrated Heads. Her portrait hangs also in St. Mungo's entrance hall. She helped Dumbledore monitor Arthur Weasley's arrival at the hospital after he was attacked by Nagini (OP22).