In the past (before 20th century), when parents baptismed their daughter with ‘Maria’ as a given name, the priests in the parish book would not write ‘Maria’, but ‘Marianna’ (Marjanna, Maryanna) as her given name. Therefore, the person was called ‘Marianna’ in all church issues, and usually also in all civil issues. Forename ‘Maria’ was reserved for
Maria from the Nazareth, the Mother of Jesus Christ.