Question: Rāghavēndra Swami or Rāghavēndra Tirtha, (c.1595–c.1671) was a Dvaita scholar, grammarian and the pontiff of the Madhvacharya Mutt at Kumbakonam from 1624 to 1671, His gentle nature and humanism is brought out through devotional poems composed in his honour by Gopala Dasa, (1721–1769) was a prominent 18th-century Kannada language poet, and saint, belonging to which tradition?
Context: Vijaya Dasa (Kannada: ವಿಜಯದಾಸ ) (1682–1755) was a prominent saint from the Haridasa tradition of Karnataka, India in the 18th century, and a scholar of the Dvaita philosophical tradition.  Along with contemporary haridasa saints such as Gopala Dasa, Helevankatte Giriamma, Jagannatha Dasa and Prasanna Venkata Dasa, he propagated the virtues of the philosophy of Madhwacharya across South India through devotional songs called "devaranama" written in the Kannada language.  An integral part of Kannada Vaishnava devotional literature, these compositions in praise of the Hindu god Vishnu are called "dasara padagalu" (compositions of the "dasas").  These compositions can be more specifically categorized as "keertanas", "suladis","ugabhogas", and simply "padas".  They were easy to sing to the accompaniment of a musical instrument and dealt with "bhakti" (devotion) and the virtues of a pious life. Narahari Tirtha (d. 1333 CE) was a scholar and one of the disciples of Madhvacharya.  He is considered to be the progenitor of the Haridasa movement along with Sripadaraja.  Though only 2 of his scholarly works are extant, they are characterised by their verbosity and lack of digressions.  A few songs of his survive under the nom de plume "Ranghukulatilaka".  As a minister of considerable influence to the Eastern Ganga rulers and later as the pontiff of Madhvacharya mutt, Narahari converted the Simhachalam temple into an educational establishment of renown and a religious centre for Vaishnavism. Vyasaraja or Vyasa Thirtha (Kannada: ವ್ಯಾಸತೀರ್ಥ ; 1447–1548), also called Vyasaraya or Chandrikacharya, was a Hindu philosopher, dialectician, polemicist and poet.  He is considered to be one of the three great spiritual sages or "munitrayam" of Dvaita Vedanta, along with Madhvacharya and Jayatirtha, for his immense contribution to the school of thought.  He was a scholar of very high order with a judicious defence of the Dvaita Vedanta against all rival schools of thought.  He also brought the Haridasa cult, historically believed to be propagated by Sri Narahari Tirtha, into limelight.  He belonged to the Dvaita school of Madhvacharya.  He, along with Jayatirtha, helped systematize Dvaita into an established school of Vedic thought.  Vyasaraja's genius lay in his clear understanding and exposition of all his opposing schools of thought, for which even his opponents admired him.  He was a master at debate and dialogue in logic and philosophy.  Till the publication of the Vyasayogicharita of the poet Somanatha, the world had no idea of the part played by Vyasaraja in the history of the Vijayanagara empire. Puttige Matha or Puttige Mutt in some records and literature is a Madhwa Vaishnava monastery.  It is one of the Ashta Mathas of Udupi founded by Dvaita philosopher Madhvacharya of Udupi.  The first pontiff of Puttige matha was Sri Upendra Tirtha, who was a direct disciple of Sri Madhvacharya, the founder of the Dvaita school of philosophy.  The main idols worshipped in the Puttige matha are that of Panduranga (Vittala), which was given to Sri Upendra Tirtha by Sri Madhvacharya.  Till date, there have been 29 pontiffs who have headed the matha. Gopala Dasa (1721–1769) was a prominent 18th-century Kannada language poet and saint belonging to the Haridasa tradition.  With other contemporary Haridasas such as Vijaya Dasa and Jagannatha Dasa, Gopala Dasa propagated the Dvaita philosophy of Madhvacharya in South India through "Kirtans" ("Songs of God") known as "Dasara Padagalu" with the pen-name ("ankita nama" or "mudra") "Gopala Vittala". Rāghavēndra Swami or Rāghavēndra Tirtha (c.1595–c.1671) was a Dvaita scholar, grammarian and the pontiff of the Madhvacharya Mutt at Kumbakonam from 1624 to 1671.  His diverse oeuvre consists of illuminating commentaries on the works of Madhva, Jayatirtha and Vyasatirtha, interpretation of the Principal Upanishads from the standpoint of Dvaita and a treatise on Purva Mimamsa.  An accomplished player of the Veena, he composed several songs under the name of "Venu Gopala" and significantly bolstered the Haridasa movement.  His gentle nature and humanism is brought out through devotional poems composed in his honour by Vijaya Dasa, Gopala Dasa and Jagannatha Dasa and his biography, "Raghavendra Vijaya", by his nephew Narayana.  Widely regarded as a saint, he enjoys enduring popularity to this day with his "Brindavana" (tomb) at Mantralaya attracting thousands of visitors every year. Sri Vijayendra Mutt is a Madhva Matha located in the town of Kumbakonam, India.  It was founded by Vijayendra Tirtha or Vijayendra Swamigal, the guru of the Madhva saint Sri Raghavendra Raghavendra Swami.  Sri Raghavendra served as pontiff of the mutt in his early days.  The samadhi of Vijayendra Swamigal is located in Kumbakonam vijayendra swamigal performed many miracles and his greatness spread like spread of light from sun even each and every common man in Tamil nadu near by Kumbakonam knows vijayendra swamigal . Sri Vadiraja Tirtha (c.1480-c.1600 ) was a Dvaita philosopher, poet and mystic.  A polymath of his time, he authored many works, often polemical, on Madhva theology and metaphysics, he composed numerous poems and as the pontiff of Sodhe Mutt, renovated the temple complex at Udupi and established the "Paryaya" system of worship.  He is also credited with enriching the Kannada literature of the time by translating Madhva's works to Kannada, giving impetus and contributing to the Haridasa movement.  His works are characterised by their poetic flourishes, incisive wit and humour. Sripadaraya or Lakshminarayana Tirtha (c.1422-c.1480) was a Dvaita scholar, composer and the pontiff of the Madhvacharya mutt at Mulbagal.  He is widely considered as the founder of Haridasa movement along with Narahari Tirtha.  His songs and hymns, writen under the nom-de-plume of "Ranga Vitthala", contain the distillation of Dvaita principles infused with mysticism and humanism.  He is also credited with the invention of the "suladi" musical structure and composed 133 of them along with several "kirtanas".  He was the advisor of Saluva Narasimha Deva Raya and mentored the young Vyasatirtha.  He has also authored a commentary on Jayatirtha's "Nyaya Sudha" called "Vagvajra". Satyatma Tirtha (officially known as Shrī 1008 Shrī Satyātma Tīrtha Swāmīji) is the present pontiff of Uttaradi Matha, a math (mutt) dedicated to Dvaita philosophy, which has a large following in southern India.  He is the 42nd pontiff of Uttaradi Matha since Madhvacharya, the chief proponent and the one who rejuvenated this Dvaita philosophy.
Answer: Haridasa