Laurence Marcellus Larson

Konungs skuggsjá (Old Norse for "King's mirror") is a Norwegian educational text from around 1250, an example of speculum literature that deals with politics and morality. It was originally intended for the education of King Magnus Lagabøte, the son of King Håkon Håkonsson, and it has the form of a dialogue between father and son. The son asks, and is advised by his father about practical and moral matters, concerning trade, the hird, chivalric behavior, strategy and tactics.
Parts of Konungs skuggsjá deals with the relationship between church and state.