The simian crease is one of the listed signs in Down Syndrome which would imply there's some genetic factor at play. My eldest daughter has a simian crease on one hand and the other hand is 'normal'.
Sovereign definition, a monarch; a king, queen, or other supreme ruler. See more.
ruler. n. 1. (Government, Politics & Diplomacy) a person who rules or commands. 2. (Tools) Also called: rule a strip of wood, metal, or other material, having straight edges graduated usually in millimetres or inches, used for measuring and drawing straight lines.thnarch-the ruler of a province (as in the Roman Empire and Byzantine Empire) or certain religious rulers with secular authority; the election of Makarios III to archbishop gave him the status of the ethnarch of Cyprus. hakim-a Muslim ruler or governor or judge.