Because of later rebuilding it is difficult to establish an exact date of construction, but it is likely that this church is newer than the Mariakirken.
The shape and design of the choir was changed during the 13th century and this is also when the large tower was constructed.
Much of the original interior has been lost in fires and in subsequent rebuilding over the years.
[9][4][5] In the southeastern part of the churchyard there is a medieval stone tower, Klokketårnet, the original function of which is unknown.
[10][11] The towers of the Søsterkirkene form the base coat of arms to Gran Municipality.
Noted poet and journalist, Aasmund Olafsson Vinje, is buried in the cemetery of Søsterkirkene.
A monument with a bust of Vinjes by sculptor Brynjulf Bergslien was erected at the site.