King Duncan

Spelt dun + can.

King Duncan is King of Scotland and is father to Malcolm (announced as heir to the throne) and Donalbain (youngest son).

To remember these facts about King Duncan use the following mnemonic: 

King Duncan loves Dunkin' Donuts and drinking cans of coke (Duncan).

King Duncan is always dragging behind him two ducks, a mallard and Donald duck (Donalbain). He has to ask the mallard to come (Malcolm) on.