Question: What is the date of death of Sigvard Gundersen's wife?
Sentence (from "Laura Gundersen"): Laura Sofie Coucheron Gundersen ("née" Svendsen) (27 May 1832 – 25 December 1898) was a Norwegian actress, counted as the first native-born tragedienne, and also, in some aspect, as her country's first professional native actress and prima donna.
Relevant evidence: Yes