<Tr> <Td> Griselda Marchbanks </Td> <Td> An elder witch who resigned from the Wizengamot and was already working for the Wizarding Examinations Authority in Dumbledore's time as student . Marchbanks personally examines Harry and some of the students of his year when they sit for their O.W.L.s. </Td> </Tr> <Tr> <Td> Bob Ogden </Td> <Td> Dumbledore uses one of Ogden's memories to show Harry the background of the House of Gaunt, Voldemort's maternal family . Ogden worked as a Magical Law Enforcer and was Head of the Magical Law Enforcement Squad before he died . </Td> </Tr> <Tr> <Td> Tiberius Ogden </Td> <Td> Though never explicitly introduced, Ogden is mentioned several times in the fifth instalment as a staunch ally of Dumbledore in the face of the headmaster's growing unpopularity . As a result, allegations (probably invented) are made against him, claiming he is involved in goblin riots . A member of the Wizengamot until he resigns to show solidarity with Dumbledore . </Td> </Tr> <Tr> <Td> Perkins </Td> <Td> A friend of Mr Weasley who lends him and the Weasleys his tent during the Quidditch World Cup . Harry, Ron and Hermione use the same tent in the final book during their search for Horcruxes . </Td> </Tr>

Who is the minister of magic when harry is 11