A bit too eager with the compound words

Royal Chancellor - Kongelig Kansler
Royal Republic - Kongelig Republikk
Elector State - Not sure. Maybe Valgstat/velgerstat. (valg = election, velger = voter)
The Preferred - Den Foretrukne
Great Ruler - Store Hersker
Elector Council - Maybe valgr?d/velgerr?d?
edit:
Might help to think of compound words to be used when you have a ?X of Y? ie. bus driver -> bussj?f?r, elector council -> velgerr?d.
But when you have ?ADJECTIVE NOUN? you don't use compound words, ie. blue sky -> bl? himmel, great ruler -> stor(e) hersker.