Question: What is the date of death of Olaf Ii Of Denmark's mother?
Sentence (from "Margaret I of Denmark"): Margaret I (15 March 1353 – 28 October 1412) was queen consort of Norway (1363–1380) and Sweden (1363–1364) and later ruler in her own right of Denmark, Norway and Sweden, from which later period there are ambiguities regarding her specific titles.
Relevant evidence: Yes