the Pejawara Matha, Palimaru Matha, Adamaru Matha, Puttige Matha, Sodhe Matha, Kaniyooru Matha, Shiroor Matha, Krishnapura Matha, Bhandarakeri Matha, Subramanya Matha, Chitrapura Matha, Bhimanakatte Matha. Out of these twelve Madhva Mathas, the first eight are referred to as "Ashta Mathas of Udupi". These eight surround the "Anantheswara" Krishna Hindu temple. These mathas are laid out in a rectangle, the temples on a square grid pattern. The monks in the matha are sannyasis, and the tradition of their studies and succession ("Paryaya" system) were established by Madhvacharya. Along with twelve mathas, there are ten mathas that are descended through Madhvacharya's direct disciples, Padmanabha Tirtha, Narahari Tirtha, Madhava Tirtha, Akshobya Tirtha and Akshobya Tirtha's disciple Jayatirtha. They are Uttaradi Matha, Vyasaraja Matha, Raghavendra Matha, Sripadaraja Matha, Kanva Matha, Baligaru Matha, Kudli Matha, Tambehalli Matha (also known as Majjigehalli Maṭha), Kundapur Matha, Sagarakatte Matha. Out of the ten, the first three, the Uttaradi Matha, Vyasaraja Matha and Raghavendra Matha , are considered to be the three premier apostolic institutions of Dvaita Vedanta and are jointly referred as Mathatraya . It is the pontiffs and pandits of the "Mathatraya" that have been the principle architects of post-Madhva Dvaita Vedanta through the centuries.As a matter of fact, these have taken the lion's share in the task of developing and propagating the philosophy of Madhva. For this reason they can unhesitatingly be regarded as the intellectual heirs to the legacy of Madhva, Jayatirtha and Vyasatirtha.