Question: Which parent of David Mirvish was instrumental in revitalizing the theatre scene in Toronto?
Sentence (from "David Mirvish"): David Mirvish, {'1': ", '2': ", '3': ", '4': "} (born August 29, 1944) is a Canadian art collector, art dealer, theatre producer, real estate developer and son of the late Toronto discount department store owner "Honest" Ed Mirvish and artist Anne Lazar Macklin.
Relevant evidence: Yes