The Government System of Labuhanbatu Regency prior to the Dutch colonialism was monarchical. The head of government was called Sultan and King, who was assisted by a man, who holds Treasurer, Bendahara Paduka Sri Maharaja and served as Head of Government per day (day like Prime Minister).
The Sultanate / kingdom in the Regency of Labuhanbatu at that time consisted of 4 (four) sultanates, namely:
And also 1Half-bestuur -semi independent) kingdom Kerajaan Kampung Raja centered in Tanjung Medan.
Source (only indon. language)
– Sejarah kab. Labuhanbatu: https://khairuddinhsb.wordpress.com/2008/10/07/sejarah-singkat-daerah-labuhan-batu/
– Sejarah kab. Labuhanbatu: http://santosndrew.blogspot.co.id/2013/11/sejarah-kabupaten-labuhan-batu.html