 Gangadhara, son of Govardhana and grandson of Divakara and younger brother of Vishnu and Laksmidhara, was a prominent mathematician of the Jambusagaranagara school who wrote Ganitamrtasagari a commentary on Lilavati of Bhaskara II and who flourished around 1420 CE.Govardhana and Divakara were themselves able mathematicians.Historians of mathematics have identified several schools of mathematics that flourished in different parts of India during the fourteenth to nineteenth centuries CE.