Rewards: Doing as Monarch says: A noble title and stipend - sword surrendered to the Monarch, Warlord killed, Noble assassinated.
Turning to the Warlord: Captain in his horde - sword surrendered to him, Noble murdered with witnesses, Witch for ever hunted by warlord.
Siding with the Noble: Sword 'Lost', choosing the most advantageous side, be it Witch, Monarch or Warlord. No rewards from the Three , but become the Noble's Courtier, smuggler and black market dealer.
Aiding the Witch : Free your soul from her command. - Kill the monarch and the Warlord, visit the Noble, Negociate the surrendering of the Sword to her (ensure true soul freedom and some minor rewards)
Yield to the Cursed Daemon Sword: Become Cosmic Horror ( Domination = Your Magic, Deception = Your Cunning)