The Betsileo are a highland ethnic group of Madagascar, the third largest in terms of population. They chose their name, meaning "The Many Invincible Ones", after a failed invasion by King Ramitraho of the Menabe kingdom in the early 19th century. Territory The Betsileo occupy the south of the Madagascar plateau. Their traditional territory extends from the north of the Mania River in the north to the foot of the Andringitra Massif in the south; to the west by the Bongolava chain and the east by the Eastern Forest, occupied by the Tanala tribe. Most of the Betsileo region lies within the boundaries of the Malagasy province of Fianarantsoa, where their capital city of the same name can be found. Traditionally their territory and their people are divided into three major parts. The Northern Betsileo (or Fisakana) is defined by the Ivato and Manandona rivers in the north and the Sahanivotry and Mania rivers to the south. The Central Betsileo (or Manandriana) is found between the Ivato and the Matsiatra rivers. The Southern Betsileo is all the Betsileo territory to the south of the Matsiatra river (the Isandra, Lalangina, Iarindrano and Andringitra). History The different Betsileo kingdoms (Fandriana, Fisakana, Manandriana, Isandra, etc.) existed independently of each other with oral traditions dating back to the 17th century. They were all eventually conquered and reorganized by Radama I. A large portion of the Betsileo people were made into slaves and traded domestically or sold to European slave traders. Radama I made Fianarantsoa the administrative capital of the central and southern Betsileo people. The north was attached to Antsirabe. Thus the Betsileo as a group began in the 19th century as an administrative subdivision by the Malagasy government. Society The Betsileo identity is closely associated with the Merina culture, since they are both highland-dwelling groups. The Betsileo social structure is determined by a very complex system of kinship. There is a close connection between family members permeating society to the level of administrative roles and jobs, as most Betsileo are obligated to join their relatives in the family occupation. There is also considerable emphasis on the role of elders as community leaders. Community elders often hold more authority than those in formal government positions. Class affiliation Betsileo society is influenced by a long history of slavery before its abolition during the French colonization. The Betsileo have a complex system of social organization determined