The Ottoman land campaign, which was the more challenging part, involved intimidating the ruler of Sinope into surrendering his realm, a march lasting more than a month through uninhabited mountainous wilderness, several minor battles with different opponents, and ended with the siege of Trebizond. The combined Ottoman forces blockaded the fortified city by land and sea until Emperor David agreed to surrender his capital city on terms: in return for his tiny realm, he would be given properties elsewhere in the Ottoman Empire, where David, his family, and his courtiers would live. For the rest of the inhabitants of Trebizond, however, their fates were less favorable.