Worldwide, Petronilla (Petronilla 
, Петронилла 
) is quite a rare feminine first name. The first name Petronilla is habitual in Italy, where it is quite a rare feminine name, Paraguay, and Tanzania, where it is a rare feminine name. Measured by absolute frequency, this name is the most popular in Italy, Brazil, and Philippines. Very seldom, Petronilla is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Petronilla | Nigeria, Italy, Philippines, Brazil, Kenya |
| Петронилла | Kazakhstan |
Peronella, Petronela, Petronella, Petronila, Petronilha, Pétronille, and Петронелла
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petronilla von holland Countess of Holland, NL (b. 1082) |
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| petronilla de grandmesnil English countess (b. 1150) |
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| petronilla de la mare English noblewoman, married first Robert de Montfort (d. 1274) and second John de la Mare (d. 1313) (b. 1248) |
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| petronilla de meath Irish woman burnt for heresy, IE (b. 1300) |
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| petronilla da troyes FR (b. 1300) |
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| petronilla tanner (1580-1629), CH (b. 1580) |
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petronilla paolini massimi Italian poetess, IT (b. 1663) |
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petronilla van outryve Flemish noblewoman and political activist, BE (b. 1748) |
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| petronilla ordioni 1815 - 1898 (b. 1815) |
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| petronilla clayton (1903-1984) (b. 1903) |
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| petronilla d. dunsterville (1913-1984) (b. 1913) |
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| petronilla kathleen florence maitland (born 1916) (b. 1916) |
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| petronilla rous (born 1943) (b. 1943) |
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| petronilla maria duwaer (1944-1969) (b. 1944) |
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| petronilla deterville St. Lucian music educator, LC (b. 1951) |
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Ali, Rocha, Russo, David, Jesus, Froes, Manica, Moraes, Santos, Selman, Arnold, Correa, Ndlovu, Martins, Ragland, Martinez, Carvalho, Castillo, Demoines, Teixeira, Conceicao, Nwachukwu, Rossi, Ramos, Pilny, Paula, Eke, Mark, Sole, Polk, Rosa, Lima, Neal, Hunt, Vale, Vaja, Cappellari, Onwu, Mello, Mueni, Silva, Souza, Stumm, Scher, Amaya, Adams, Costa, Bruno, Udoh, and Nascimento