>>123299320"According to Harley Quinn, Maria was "Cuban or something". Furthermore, during an argument, her husband Brian claimed that Maria's family were refugees, yelled at her for speaking a language other than English, and complained that the food Maria cooked was not "normal" because it contained ingredients like beans and rice. These are all racist criticisms often leveled against Latinos in the United States, particularly in the 1990s when the comic was published.
In Catwoman: When in Rome, it is suggested that Brian and Maria are not Selina's biological parents and that Carmine Falcone and Louisa Falcone are. This was never proven decisively."
https://dc.fandom.com/wiki/Maria_Kyle_(New_Earth)The whole thing is ambiguous. I think it's one of those cases of "it's up to your imagination" stuff.