Question: In which year was this county and municipality founded, where the Norwegian jazz orchestra Batagraf is based?
Sentence (from "Oslo"): Founded in the year 1040, and established as a "kaupstad" or trading place in 1048 by Harald Hardrada, the city was elevated to a bishopric in 1070 and a capital under Haakon V of Norway around 1300.
Relevant evidence: Yes