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Cognomen Sylvanius (Sylvanius
) , in the entire world, is a very rare family name. The cognomen Sylvanius is characteristic of Sub-Saharan Africa, particularly Nigeria, where it is a very rare surname. Also, Sylvanius is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sylvanius | Nigeria, United States, South Africa |