Madhva Acharya (mdhvaacaaryru)(Sanskrit pronunciation: [m@dhva:'tSa:rj@]; CE 1238-1317 ), also known as Purna Prajna and Ananda Teertha, was a Hindu philosopher and the chief proponent of the Dvaita (dualism) school of Vedanta. Madhva called his philosophy Tatva-vaada meaning "the tattva or realist viewpoint". Madhvacarya was born on the west coast of Karnataka state in 13th-century India. As a teenager, he became a Sanyasi (monk) joining Brahma-sampradaya guru Achyutapreksha, of the Ekadandi order.

The biography of Madhvacharya is unclear. Many sources date him to 1238-1317 period, but some place him about the 1199-1278 period.  Madhvacarya was born in Pajaka near Udupi, a coastal Malabar region of south-west India in the state of Karnataka. Traditionally it is believed that Naddantillaya (Sanskrit: Madhyageha, Madhyamandira) was the name of his father and Vedavati was Madhvacarya's mother. Born in a Vaishnavite Brahmin household, he was named Vasudeva. Later he became famous by the names Purnaprajna, Anandatirtha and Madhvacarya (or just Madhva). Purnaprajna was the name given to him at the time of his initiation into sannyasa (renunciation), as a teenager. The name conferred on him when he became the head of his monastery was "Ananda Tirtha". All three of his later names are found in his works. Madhvacarya or Madhva are names most commonly found in modern literature on him, or Dvaita Vedanta related literature.  Madhva began his school after his Upanayana at age seven, became a monk or Sannyasi in his teenage. He joined an Advaita Vedanta monastery in Dwarka (Gujarat), accepted his guru to be Achyutrapreksha, who is also referred to as Achyutraprajna in some sources. Madhva studied the Upanishads and the Advaita literature, but was unconvinced by its nondualism philosophy of oneness of human soul and god, had frequent disagreements with his guru, left the monastery, and began his own Dvaita movement based on dualism premises of Dvi - asserting that human soul and god (as Vishnu) are two different things. Madhva never acknowledged Achyutrapreksha as his guru or his monastic lineage in his writings.  According to Dehsen, perhaps there were two individuals named Madhvacharya in 13th century India, with Anandatirtha - the younger Madhva being the most important early disciple of the elder Madhvacharya, and their works and life overlapped in Udupi, Tattvavada being the name adopted for Dvaita Vedanta by Anandatirtha. Madhvacharya established a matha (monastery) dedicated to Dvaita philosophy, and this became the sanctuary for a series of Dvaita scholars such as Jayatirtha, Vyasatirtha, Vadiraja Tirtha and Raghavendra Tirtha who followed in footsteps of Madhva.  A number of hagiographies have been written by Madhva's disciples and followers. Of these, the most referred to is the sixteen cantos Sanskrit biography Madhvavijaya by Narayana Panditacarya - son of Trivikrama Pandita, who himself was a disciple of Madhva.

Answer the following question by taking a quote from the article: was he married?
became a monk or Sannyasi in his teenage.