Simhana in the context of "Sangita Ratnakara"

The Seuna, Sevuna, or Yadavas of Devagiri (IAST: Seuṇa, c. 1187–1317) was a medieval Indian dynasty, which at its peak ruled a realm stretching from the Narmada river in the north to the Tungabhadra river in the south, in the western part of the Deccan region. Its territory included present-day Maharashtra, northern Karnataka and parts of Madhya Pradesh, from its capital at Devagiri (present-day Daulatabad in modern Chhatrapati Sambhajinagar district, Maharashtra).

The Yadavas initially ruled as feudatories of the Western Chalukyas. Around the middle of the 12th century, as the Chalukya power waned, the Yadava king Bhillama V declared independence. The Yadavas reached their peak under Simhana II, and flourished until the early 14th century, when it was annexed by the Khalji dynasty of the Delhi Sultanate in 1308 CE.

Śārṅgadeva (1175–1247), also spelled Sharngadeva or Sarnga Deva, was a 13th-century Indian musicologist who authored Sangita Ratnakara – a Sanskrit text on music and drama. It is considered to be the authoritative treatise on Indian classical music by both the Hindustani and Carnatic music traditions.

Śārṅgadeva was born in a Brahmin family of Kashmir. In an era of Islamic invasion of the northwest regions of the Indian subcontinent and the start of Delhi Sultanate, his family migrated south and settled in the Hindu kingdom in the Deccan region ruled by the Yadava dynasty near Ellora Caves (Maharashtra). Śārṅgadeva worked as an accountant with freedom to pursue his music interests in the court of King Simhana (r. 1210–1247).