Question: What is the date of death of Otto Ii, Count Of Guelders's father?
Answer: 22 October 1229

Gerard III of Guelders (1185 – 22 October 1229) was the Count of Guelders and Zutphen from 1207 until his death in 1229. He was a son of Count Otto I of Guelders, and is sometimes called Gerard IV or Gerard V. He married Margaretha of Brabant, the daughter of Duke Hendrik I of Brabant, in 1206