| Location: | , Finland |
| Coords: | 61.1372°N 22.3267°W |
| Pushpin Map: | Finland |
| Basin Countries: | Finland |
| Area: | 12.42km2 |
| Max-Depth: | 12.81m (42.03feet) |
| Islands: | 4 |
| Reference: | [1] [2] |
(Lake, Swedish: Kjulo träsk) is a lake in the municipality of, Finland. Lake and its surroundings are classified as one of the National landscapes of Finland. The area has been inhabited continuously since the Iron Age.[3]
is the home of the first documented historical event in Finland as Saint Henry was allegedly murdered by peasant called on the ice of the lake in 1156. Island is located near the murder site. It used to be a Medieval pilgrimage site for Roman Catholics.
is another and much larger island. Its first church was built there in the 15th century; the present church dates back to 1752.
The story of Henry's death on the lake is the subject of the song "", by Finnish metal band Moonsorrow.