You need 1257AD mod and/or 1257AD Enhanced Edition for Mount&Blade; Warband (both found on-site).
Save games containing modified map information for 1257AD & 1257AD Enhanced Edition (Mount&Blade Warband mods). Lets you play as the legendary first voivode of Wallachia, Radu Negru, on a modified 1257AD map containing lots of villages,castles & towns in the region of modern day Romania.
You can edit the character however you want.
The map differs between 1257AD & 1257AD Enhanced Edition because I edited them in different periods.
In the basic version I tried to name them according to how they were called historically and I didn't take into account too much the effect of moving them from other places on the map.
In the enhanced version I named them according to what they are called today and I gave more thought to the movements I made. Gameplay-wise I feel this is a more stable version as you don't get attacked by Venice out of the blue wanting to take back Giurgiu (Giorgio in game) or by the HRE wanting to take back Rasnov (Rosenau in game) when playing as a Voivode :)
Everything is edited with historical accuracy in mind but we know so little about that place in time... most is from legend so take "historical accuracy" with a grain of salt.