The origin of the Rashtrakuta dynasty has been a controversial topic and has been debated over the past decades by historians. The differing opinions mostly revolve around issues such as the home of the earliest ancestors of the medieval Rashtrakutas, a possible southern migration during the early part of the first millennium and the relationship between the several Rashtrakuta dynasties that ruled small kingdoms in northern and central India and the Deccan in the 6th century - 7th century. Further, the relationship of these medieval Rashtrakutas to the most important and famous dynasty, the Rashtrakutas of Manyakheta of the 8th century - 10th century time period has also been debated. Also contested is whether the Rashtrakutas of Manyakheta were related by ancestry to the early Kannada, Maratha, Rajput, Reddi or Punjabi communities of the Deccan and northern India.