Question: What is the date of birth of Johann Hinrich Gossler's wife?
Sentence (from "Johann Hinrich Gossler"): Johann Hinrich Gossler (born 18 August 1738 in Hamburg, died 31 August 1790 in Hamburg) was a German banker and grand burgher of Hamburg, a member of the Hanseatic Berenberg/Gossler banking dynasty and the owner and head of the firm Joh.
Relevant evidence: No