noun
- Son of Frederick William who in 1701 became the first king of Prussia (1657-1713. )
- Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190. ).
- synonyms: Frederick Barbarossa, Barbarossa
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). frederick i. Retrieved September 21, 2026, from http://smartdefine.org/frederick_i/definitions/1233671 |
| Chicago | WordNet. 2010. "frederick i" http://smartdefine.org/frederick_i/definitions/1233671 (accessed September 21, 2026). |
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| MLA | WordNet. "frederick i" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/frederick_i/definitions/1233671> |