Question: When did Albert Iii, Margrave Of Brandenburg-Salzwedel's father die?
Sentence (from "John III, Margrave of Brandenburg-Salzwedel"): John III, Margrave of Brandenburg- Salzwedel, nicknamed" John from Prague"( 1244 in Prague – 1268) was the eldest son of Margrave Otto III and his wife, Beatrice of Bohemia.
Relevant evidence: No