User blog comment:Crimson and Darkness/High School DxD DX.5 discussion/@comment-174.200.88.36-20190322210804

Okay, so if you put Unknown Dictator's owner's last name ローズ onto the Japanese wiki, the (last) names that appear are translated as either "Rose" or "Rhodes". Ross would be ロス or a variation with a third character in the middle.