Norwegian krone - Wikipedia | Norwegian krone, Coins, Norwegian
This 1746 chart of Danish heraldic crowns only lists three forms of nobility: Counts, barons ("friherre") and untitled nobility. However the Wikipedia article on heraldic crowns also specify Danish crowns for dukes
Denmark - a Cruising Guide on the World Cruising and Sailing Wiki
Currency across Europe (Source: Wikipedia) : r/geography
crown - Wiktionary
Danish krone - Wikipedia
200 danish kroner - Google Search | Denmark, Bank notes, Danish krone