frederick i

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الإنجليزية - الإنجليزية
{i} (known as Frederick Barbarossa) holy Roman emperor from 1152 to 1190 and king of Germany and Italy
Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190) son of Frederick William who in 1701 became the first king of Prussia (1657-1713)