Final answer:
King Vladislav rejected the terms of the "Peace of Edirne" primarily due to his ambition for greater power and pressure from allies, particularly the Papacy and Western European powers who wanted to continue the fight against the Ottomans.
Step-by-step explanation:
King Vladislav rejected the terms of the "Peace of Edirne" in August 1444 primarily due to ambition for greater power and pressure from allies. Despite the peace treaty brokered to end hostilities between the Kingdom of Hungary, whom Vladislav II of Hungary represented, and the Ottoman Empire, external pressures played a significant role. Western European powers, particularly the Papacy, were interested in continuing the fight against the Ottomans. Furthermore, Vladislav's own ambition to strengthen his rule and possibly reclaim territories led him to renounce what was initially agreed upon under the peace treaty.
The context of this decision is set against a backdrop where European powers, including kingdoms and the Church, exerted considerable influence over leaders and their policies. Thus, it wasn't solely Vladislav's own ambition but also the expectations of his allies and the broader crusading spirit of the time that motivated him to resume hostilities against the Ottomans. Meanwhile, the Ottoman state, exemplified by earlier rulers like Murad I, established a reputation for religious tolerance and administrative efficiency, which contrasted with the occasionally exploitative nature of European rule, and this internal stability may have further emboldened rulers like Vladislav to challenge Ottoman power.