Rowling's sister Dianne[8] was born at their home when Rowling was 23 months old.[26] The family moved to the nearby village Winterbourne when Rowling was four.[31] She attended St Michael's Primary School, a school founded by abolitionist William Wilberforce and education reformer Hannah More.[32][33] Her headmaster at St Michael's, Alfred Dunn, has been suggested as the inspiration for the Harry Potter headmaster Albus Dumbledore.[34]