What was the Cathars' or Albigensians' political philosophy?

What was the Cathars' or Albigensians' political philosophy? Was it the same as the Manicheans'? Who were these movements' prominent political philosophers?

All these dualists thought that marriage and the body were evil; so it would seem that they would think the family, the fundamental cell of society, is evil, too, and thus all of civil society evil.