Surname Gentianus (Gentianus 
) , all around the world, is an extremely rare last name. Much more frequently, Gentianus is the forename as well as the last name.
| hedius lollianus terentius gentianus Roman senator and consul in 211 (b. 150) |
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| lucius tutilius pontianus gentianus (b. 150) |
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| quintus hedius rufus lollianus gentianus Roman consul |
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| cosconius gentianus governor of Lower Moesia in 195 to 198 |
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