Romanorum
Romanorum is a Latin form of Romanus, meaning “Roman; a Roman”. It is the genitive plural masculine adjective.
Found 505 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 1.17.3: praestare, si iam principatum Galliae obtinere non possint, Gallorum quam Romanorum imperia perferre,
All forms of Romanus (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.