All the Nordics have a brotherly bond. This counts especially strong for Emil and Mathias. Iceland left the kingdom of Denmark last. So for a while, it was just them.

Want to hear something even cuter? Little Emil knew how to make flower crowns. Mathias was upset about everyone else leaving, so Emil made him flower crowns to cheer him up. Even a few times stating "A king isn't a king without a crown!" Referring to the 'King of Northern Europe' thing.