Final answer:
Historians believe that St. Patrick was born as Maewyn Succat and took the name Patricius or Patrick after becoming a priest.
Step-by-step explanation:
Historians believe St. Patrick's name at birth was Maewyn Succat. While there is no archaeological evidence to directly confirm this, historical texts such as the Declaration, which is attributed to Patrick himself, suggest that he was born with a different name and took on the name Patricius or Patrick after becoming a priest. Patrick is known as the patron saint of Ireland, and his life's work includes the conversion of Irish Gaelic peoples to Christianity in the fifth century.