Mora Sten (Mora Stone) is the place where medieval kings were elected and celebrated.
The first recorded celebration there was in 1275, but the tradition is probably
However, when Sweden became an inherited monarchy in the 16th century, the tradition died out.
The exact location of Mora Sten is not known, but it must have been
in the present-day municipality of Knivsta, somewhere along the important waterway
between the Baltic and Uppsala.
As a ”document” of the royal elections at Mora Sten, a text was carved in stone.
Some of these stones are preserved in a small museum built in 1770, about seven kilometres from Knivsta Centre.
The royal election with the king's assurance that he would govern the country according
to the law, has inspired the heraldic coat of arms of Knivsta: a crown above three
hills against a red background.