During medieval period some Brahmin settlements developed under the patronage of the Somavamsi Kings. Important among these centres are Vineetapura (Modern Binka), Suvarnapura (Modern Sonepur), Royara (Modern Rohila), Ranipur, Jharial etc. These places as known from copper plate records and other archeological finds, were important center of culture during the medieval period. During the rule of the Chauhan Kings, Sanskrit education was greatly encouraged. King Vaijal Deo, one of the early Chauhan rulers of Patna state has compiled an admirable lexicon, known as Vaijal Chandrika ( also known as Prabodh Chandrika)