Beryl Ogg
The sister of Nanny Ogg, and, according to its context in Witches Abroad, a representative of one branch of the Ogg family which is temporarily in a cold war with another branch of the Ogg family. She may be, in Nanny's opinion, a greedy ingrate with the conscience of an oyster, but she is Nanny's sister, and therefore to be defended if anyone outside the Ogg family passes judgement.