അർത്ഥം : Son of Frederick William who in 1701 became the first king of Prussia (1657-1713).
അർത്ഥം : Holy Roman Emperor from 1152 to 1190. Conceded supremacy to the pope. Drowned leading the Third Crusade (1123-1190).
പര്യായപദങ്ങൾ : barbarossa, frederick barbarossa