Melfice Silesius, General of the Armies, Master Tactician and Strategist.
Awarded lordship of a small town, renamed Silesius, on a contested border which he then fortified and turned into a thriving trade city. Through conquest came into lordship of the neighbouring town of Indori, which was then kept as a sister city and defensive fort to Silesius as part of peace negotiations.
Essentially, Silesius and Indori are neutral ground between the countries, and Melfice is sworn to uphold the peace, despite his main role as the general of generals of his king's armies.
Next to his own appointed troops, the army contained in both fortresses is a volunteer's legion, and many apply for a position due to the high prestige and excellent pay.
Some swear Melfice must have been born to the God of War, for his abilities in combat and the arts of war, but none can confirm this...
EDIT: Overpowered? Yes. This is a rewrite of the original story, which involved divine intervention.
But I like it enough to not care.