Dahomey conquered Allada, the origin for the royal family according to oral tradition, and in 1727 he conquered Whydah. This increased size of the kingdom, particularly along the Atlantic coast, and increased power made Dahomey into a regional power. The result was near constant warfare with the main regional state, the Oyo Empire, from 1728 until 1740. The warfare with the Oyo empire resulted in Dahomey assuming a tributary status to the Oyo empire. Tegbesu, also spelled as Tegbessou, was King of Dahomey, in present-day Benin, from 1740 until 1774. Tegbesu was not the oldest son of King Agaja (1718–1740), but
Dahomey to the Oyo Empire. The Kingdom of Dahomey was an important regional power that had an organized domestic economy built on conquest and slave labor, significant international trade with Europeans, a centralized administration, taxation systems, and an organized military. Notable in the kingdom were significant artwork, an all-female military unit called the Dahomey Amazons by European observers, and the elaborate religious practices of Vodun with the large festival of the Annual Customs of Dahomey. They traded prisoners, which they captured during wars and raids, and exchanged them with Europeans for goods such as knives, bayonets, firearms, fabrics, and spirits. The