Question: Daphne Slater attended what school founded by one of the Great Twelve Livery Company's of the City of London? 
Sentence (from "Daphne Slater"): She was born in London and educated at Haberdashers' Aske's School for Girls, when it was in Acton, before attending the Royal Academy of Dramatic Art, where she won the academy's gold medal.
Relevant evidence: Yes