The reign of Iyasu I the Great (1682-1706) was a major period of consolidation. It also saw the dispatching of embassies to Louis XIV's France and to Dutch India. During the reign of Iyasu II (1730-1755), the Empire was strong enough to undertake a war on the Sennar Sultanate, where the emperor leading its army to Sennar itself, was afterwards forced to retreat upon defeat along the Setit river. Iyasu II also conferred the dignity of Kantibai of the Habab (northern Eritrea) after homage by a new dynasty.