Sør-Trøndelag county comprises the southern part of Trøndelag and situated on both sides of the Trondheims fjord. The county has a population of 270,266 and its capital city is Trondheim, with a population of 145,691.
Trondheim, which means home of the Trønder, was founded in 977 by King Olav Tryggvasen and is one of the oldest cities in Scandinavia. It was a royal residence for centuries and Norway's royal regalia is kept in the Archbishops Palace near the famous Nidaros Cathedral, built in the middle ages.
Two long valleys stretch to the south and connect Trøndelag to the southern part of Norway.