seems broken atm, not completing although all personal legend achievements done

I believe the reward for this is points to be exchanged with clothing on the Next island website: Personal Legend 

Can be found at Carolines. To update the mission go back and talk to the bar tender. 

- the prisoner is on Next Island, Thebes - got to go close to one of the stands to get in prison there is a prisoner there

- the one about killing with a melee weapon in Ancient Greece (Splattered) - not any melee weapon will do, the one given as mission reward in Ancient Greece works (nice work on the blood splashes, fun :D )