Dub or Duff was king of Scotland after the death of Indulf/Indulphus in 962, he reigned for 4-5 years until 967 when he died and was succeeded by Cuílen he was the son of king Malcolm I and most likely Bethoc. He was born circa 915 making him nearly 50 before he became king. He had 2 children with NN, Kenneth III who later reigned and Grimus II mac Duibh, prince of Scotland.