It remained , however , a place of pilgrimage throughout the Middle Ages .
Nousiainen was the first seat of the bishop of Finland until the early 13th century , whereafter the seat was shifted to Turku .
Nousiainen remained , however , a place of pilgrimage throughout the Middle Ages .
Nousiainen was the first seat of the bishop of Finland until the early 13th century , whereafter the seat was shifted to Turku .