Birth Name: Paulina Susana Rubio-Dosamantes
Place of Birth: Mexico City, Mexico
Date of Birth: June 17, 1971
Ethnicity: Galician Spanish and Mexican [Spanish, Indigenous], possibly distant Italian
Paulina Rubio is a Mexican singer, actress, television music series judge, model, hostess, and businessperson. She is the daughter of Susana Dosamantes, an actress, and Enrique Rubio González. Her father is of Galician (Spanish) descent. Her mother is Mexican, and has Spanish and Indigenous Mexican ancestry.
Paulina’s paternal grandfather was surnamed Rubio.
Paulina’s paternal grandmother was surnamed González.
Paulina’s maternal grandfather was named Mario Dosamantes Rul (the son of [probably Jesús] Dosamantes, and of a woman surnamed Rul). Mario was born in Villa De Guadelupe Hgo.
Paulina’s maternal grandmother was María Elena Susana Riestra Alcaraz (the daughter of José Salvador Riestra Dávila and María Micaela Alcaraz Brambila). Paulina’s grandmother María was born in Guadalajara. Paulina’s great-grandmother María may have had some Italian ancestry.
Sources: Immigration index of Paulina’s maternal grandfather, Mario Dosamantes Rul – https://familysearch.org
Immigration index of Paulina’s maternal grandmother, María Elena Susana Riestra Alcaraz – https://familysearch.org
Death certificate of Paulina’s maternal grandmother, María Elena Riestra Alcaraz – https://familysearch.org
She definitely has some Italian ancestry from “Brambila” line, that is a very common surname from Lombardy, originally spelled “Brambilla”.