Catharina was the daughter of vicar Aaron Olai Helsingius and his wife Catharina Holstenia. She was born the same year her parents came to Skinnskatteberg parish, 1663. The event occupies a whole page in the church book. Her exact time of birth is stated: last day of October between 6 and 7 in the evening. Her baptism took place 5 November, with an extraordinary number of witnesses. Little Catharina died 12 january 1664.