Yes, "Protestant" should be capitalized when referring to the Protestant branch of Christianity or a specific Protestant denomination.
He was a protestant.
Protestant
Protestant
Protestant missionaries. -APEX Learning®️ 2021
Protestant.
Protestant
Protestant.
Protestant, most churches such as Methodist or Baptist come from the protestant faith.
6.96% of Indonesia is Protestant.
Yes -- he was a Puritan/Presbyterian Protestant
yes my name is Coleman and I am a protestant