君士坦丁大帝 (君士坦丁大帝) jūnshìtǎndīng dàdì

jūnshìtǎndīng dàdì proper noun Constantine I; Constantine the Great
Domain: History 历史 , Subdomain: Europe , Concept: Emperor 皇帝
Notes: (Lived 272－337 CE, reigned 306－337 CE) first Christian Roman emperor