Riley comes from the Irish surname O Raghallaigh, popularly translated as "valiant" though the surname's own root is debated among genealogists, with some tracing it instead to a place name. The popular reading has stuck, and the name tends to carry connotations of spirited resolve.
Mars conflicts with those who are ruled by Venus, and Venus conflicts with those ruled by Mars. - Picatrix (Andalusia, ~1000.AD)