Question: What is the date of death of Louis Iv, Landgrave Of Thuringia's wife?
Sentence (from "Louis IV, Landgrave of Thuringia"): Louis IV the Saint (28 October 1200 – 11 September 1227), a member of the Ludovingian dynasty, was Landgrave of Thuringia and Saxon Count palatine from 1217 until his death.
Relevant evidence: No