Potemkin was Catherine’s agent and helped her during her rise to power. They were lovers and may have been married secretly. Potemkin was a very clever man, as well as bold, confident, and captivating. He was always insecure about how much power Catherine had and was jealous of her former lovers, which eventually led to their relationship ending. He was supreme commander in the second Turkish-Ottoman war and helped build South Russia.

I imagine he sounds like if Hans from Frozen were Russian.