Definition that contains holy roman emperor
- barbarossa Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190)
- ferdinand i Holy Roman Emperor and king of Hungary and Bohemia (1503-1564)
- frederick i Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190)
- ferdinand iii Holy Roman Emperor and king of Hungary and Bohemia who signed the Peace of Westphalia ending the Thirty Years' War (1608-1657)
- ferdinand ii Holy Roman Emperor and king of Bohemia and Hungary who waged war against Protestant forces (1578-1637)
- frederick barbarossa Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190)