Family name Marostica (Marostica 
) , in all the world, is quite a rare surname. The family name Marostica is characteristic of Cayman Islands, where it is quite a rare surname, Italy, and Brazil, where it is a rare surname. In absolute terms, it most frequently occurs in Brazil, Italy, and the United States. Very seldom, Marostica is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Marostica | Italy, Canada, Brazil, United States, Argentina |
| michael de marostica author (15th century) (b. 1401) |
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| lorenzino van marostica (b. 1480) |
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don marostica American politician, US (b. 1948) |
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| gerardo offreducci da marostica Roman Catholic bishop |
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| chanty marostica Canadian stand-up comedian |
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| giovanni da marostica Roman Catholic bishop |
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| josé cauduro marostica researcher (ORCID 0000-0003-0252-7570) |
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| paolo marostica Italian rower, IT |
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