Complex sentence: Writers in these courts, many of whom were Veerashaiva by faith, were not only adept in Kannada but often in Sanskrit and/or Telugu; two such writers were Kalale Nanjaraja and Kempe Gowda, the founder of Bangalore.
Split into simpler sentences: Writers in these courts, many of whom were Veerashaiva by faith, were not only adept in Kannada but often also in Sanskrit and/or Telugu. Two such writers were Kalale Nanjaraja and Kempe Gowda, the founder of Bangalore.