These promo cards were originally available through online retail in June of 2018, and then afterwards they part of the rewards for backing Game Boy Geek 2021 Kickstarter campaign. Both Jarls require both Fields of Fame and Hall of Heroes.
1 x Jarl: Erikson
Subdued = Gain 3 VP if you have completed 1 of each Quest type
Killed = You may immediately complete a Quest
1 x Jarl: Freyja
Subdued = Gain 1 VP for each pair of Mead in your Supply
Killed = Gain 3 Mead
-description from designer
For more information, please refer to the BGG listing.
Part of the Game Boy Geek collection.