[#68904] Biskop Jacob Jensen Jersin (1633-1694)

[Gjest Tybring Hemphill]

I am stuck on this portrait of Jacob Jensen Jersin and sincerely hope someone may be able to help directly or suggest someone who can. It seems certain that if an answer is to be found, it will be in Kristiansand Riksarkivet. What clues if any does the article in post #6 give about the portrait? Thank you.