Question: What is the date of death of John Iii, Burgrave Of Nuremberg's mother?
Sentence (from "Frederick III, Burgrave of Nuremberg"): Frederick III of Nuremberg( 1220 – 14 August 1297 in Cadolzburg), Burgrave of Nuremberg from the House of Hohenzollern, was the eldest son of Conrad I of Nuremberg and Adelheid of Frontenhausen.
Relevant evidence: No