Speaking of those original pilgrims, do you know of which denomination they were?

There are 3 types of pilgrim, but the original is the one that was directed or returned from the cathedral of Santiago Of compostela, to visit the tomb of the apostle, of course belonging to the catholic religion of Spain, then in the middle age were born two other types of pilgrims, Romeros and Palmeros, the first went to Rome and the last to Jerusalem.