Ursus

Also Romansh:
Source: "Vornamen in der Schweiz. Prénoms en Suisse. I nomi in Svizzera. Prenoms in Svizra" (1993) published by the Association of Swiss registrars
https://sursassiala.ch/2015/01/15/familienforschung/

Ursus was used as a cognomen by the Romans before the start of the Late Roman period in the 3rd century AD (which is where most historians place the beginning of that era). As such, you might want to consider changing the usage of this name to "Ancient Roman".

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• http://www.trismegistos.org/name/10939 (in English; click on "Attestations by century")
• general search for Ursus at the Epigraphic Database of Heidelberg: https://edh-www.adw.uni-heidelberg.de/inschrift/suche?qs=Ursus (in English)
• https://en.wikipedia.org/wiki/List_of_Roman_cognomina#U (in English)

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Note, however, that the cognomen Ursus appears to have been rare in the centuries BC. It only really began to flourish in the centuries AD.

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A notable bearer of this name was Lucius Julius Ursus. He was a Roman senator who had served as suffect consul three times: in 84 AD, in 98 AD and in 100 AD:

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• https://en.wikipedia.org/wiki/Lucius_Julius_Ursus (in English)

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Another notable bearer was Lucius Julius Ursus Servianus, an Iberian Roman politician who served once as suffect consul (90 AD) and twice as consul (in 102 AD and 134 AD):

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• https://en.wikipedia.org/wiki/Lucius_Julius_Ursus_Servianus (in English)

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There are a few other examples where Ursus is a cognomen, though the bearers in question are not particularly notable. Here they are:

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• Acutius Ursus (220 AD): https://en.wikipedia.org/wiki/Acutia_(gens)#Members (in English)
• Marcus Novellius Ursus (era not clear): https://en.wikipedia.org/wiki/Novellia_(gens)#Members (in English)
• Sextus Arellius Ursus, owner of a female slave named Silvia Sex[...]s sometime between 70 and 130 AD: https://en.wikipedia.org/wiki/Silvia_gens#Historical_Silvii (in English) [noted -ed]