Question: When did Otto Ii, Prince Of Anhalt-Aschersleben's father die?
Answer: 25 June 1304

He was the last child and only son of Otto I, Prince of Anhalt-Aschersleben, by his wife Hedwig, daughter of Henry III the White, Duke of Breslau. Otto I, Prince of Anhalt-Aschersleben (died 25 June 1304) was a German prince of the House of Ascania and ruler of the principality of Anhalt-Aschersleben. He was the eldest son of Henry II, Prince of Anhalt-Aschersleben, by his wife Matilda, daughter of Otto the Child, Duke of Brunswick-Lüneburg