Question: When did Margaret Ii, Countess Of Hainaut's husband die?
Sentence (from "Louis IV, Holy Roman Emperor"): Louis IV was Duke of Upper Bavaria from 1294/1301 together with his elder brother Rudolf I, served as Margrave of Brandenburg until 1323, as Count Palatine of the Rhine until 1329, and he became Duke of Lower Bavaria in 1340.
Relevant evidence: No