In the Antico district near the bottom, there is a break in an overpass where a usual
4 guards are almost always positioned there. Attack these guard, either from a 
horse with air attack from a horse. 2 to 4 mercenaries will also attack and try to
kill you. Kill all guard and the mercenaries. Upon doing a search for valuables of
the merc's almost all have hard find items, such as Vlad coins etc. Always check the
merc's for valuables.