No, they are not racial groups but religious groups.
Catholics Muslims Jews
Yes, I believe so.
No, it is between Protestants and Catholics.
Protestants, Catholics, Jews
In Spain, the three religions that were in almost constant conflict were Catholics, Muslims, and Jews. The historical context includes the Reconquista, where Catholic kingdoms sought to reclaim territory from Muslim rule, and the Inquisition, which targeted Jews and converts. Protestants were less prominent in Spain compared to these other groups, and Slavs do not specifically relate to the religious conflicts in Spain.
The same God worshipped by Jews, Muslims, and all other areas of Christianity
Of course not. Catholics consider Muslims unbelievers. All religious believers will consider themselves as true believers. However, Muslims don't consider Catholics, or Christians in general, unbelievers. Muslims consider Christians (as Jews) people of the book because Musilms believe in the holy books of the Bible and the Torah.
The three main religions that were in conflict in Spain were Catholics, Protestants, and Muslims. Catholics, particularly after the Reconquista, sought to unify Spain under Christianity, leading to tensions with Muslims who had previously ruled parts of the country. Additionally, the Protestant Reformation created further religious strife as Catholic authorities opposed Protestant movements. Jews also faced significant persecution during this period but were not one of the primary conflicting religious groups like the others listed.
The Nazis were interested in exterminating groups that they felt were inferior. Jews, disabled people, Slavic people, and gypsies were the groups that were exterminated on racial grounds.
Most religions have holy sites, including the Christians, Jews, Muslims and Catholics.
Muslims Spain during the Middle Ages was a golden age for both Muslims and Jewish thinkers, poet, artists, and scientists.
European- roman catholics and Jews