Complex sentence: Ari Mikael Behn (née Ari Mikael Bjørshol, born 30 September 1972) is a Norwegian author, and is best known as the husband of Princess Märtha Louise of Norway.
Split into simpler sentences: Ari Mikael Behn (née Ari Mikael Bjørshol, born 30 September 1972) is a Norwegian author. He is best known as the husband of Princess Märtha Louise of Norway.