However the fief of Viborg castle and its county, was not formally hereditary, though almost all appointees were from certain families, related to the Bonde-Bååt-Haak family that also between 1350s and 1390s held the Swedish titular version of the earldom of Orkney.
On the other hand Haak had other associations (with Marin Mersenne; with John Pell and Gabriel Plattes of the Hartlib Circle).
Kohlrabi (German turnip or turnip cabbage) (Brassica oleracea Gongylodes group) (Olkopi in Assamese and Bengali) (Monji Haak in Kashmiri) is an annual vegetable, and is a low, stout cultivar of cabbage.
Haak’s language skills were used in translation and interpretation and his personal correspondence with the natural philosophers and theologians of the day, including Marin Mersenne and Johann Amos Comenius; he facilitated introductions and further collaborations.