One of the landmark of Porvoo is medieval cathedral which dominates panorama of the city. 13 century when the town was established the first church build by wood and later stone church replaced it. When Swedish King visited this important costal new town of his kingdom he ordered to build a castle which gave the name Porvoo ( Borgå, in Swedish: "river castle").
Southern Finland has its most Swedish speaker population. This is a reality for Porvoo too. In a beautiful way this cathedral serves both Swedish and Finish speaker parish of the city. They organise weekly gathers, weddings, baptism and more in the same building.
Porvoo cathedral is a middle range size medieval structure. Present shape and look dates back to 1450s but after that it was build several times by Danish and Russians it was destroyed or damaged. Latest 2006 wooden roof of church burned and a Finnish black-metal singer found guilty about it. Thanks god interior and medieval wall paintings did not get much damage during in last fire.
As usual maritime related cultures inside of church a ship model is hanging. This city had a safe and easy accessible harbour in medieval and early modern age. Trade via harbour brought wealth and prosperity to Porvoo.
The cathedral has a nice website, but event calendar is in Finnish. In Finnish page pull website down to cross " tapahtumakalenderi" ( events calendar). Before your visit it is highly recommended to check out programs to have smooth visit of it. https://www.porvoonseurakunnat.fi/yhteystiedot/english/