Both.
Most monasteries and convents are Roman Catholic in nature, and the monks and nuns Catholics. However, there are also many monasteries and convents under Anglican orders (the Anglican Church being part of the Protestant movement) as well as many in the Orthodox Church as well as many other non-Catholic denominations. Therefore the monastic life (or the life of a nun), though primarily Catholic, is found in many denominations and countries spread right across the world.
The Catholic and Protestant churches worked together to support composers during the Baroque period.
She was a Protestant
Because he needed some money for his war and because he was becoming a protestant
James I of England was Protestant not Catholic.
The name can be either Protestant or Catholic.
Protestant
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England and the Netherlands were both Protestant while Spain was Catholic.
Catherine de Medicis most definitely supported the Catholic Church against the heretics.
Protestant.
Protestant.
Protestant