Köyliönjärvi
Köyliönjärvi is a lake in the municipality of Köyliö, Finland.
Lake Köyliö is the home of the first documented historical event in Finland as Saint Henry was allegedly murdered on the ice of the lake in 1156. The lake and its surroundings are classified as one of the National landscapes of Finland. The area has been inhabited continuously since the Iron Age.Islands
is located near the murder site of Saint Henry. It used to be a Medieval pilgrimage site for Roman Catholics.
Kirkkosaari is another and much larger island. Its first church was built there in the 15th century; the present church dates back to 1752.
