See Kosambi and Gokhale, Subhāṣitaratnakoṣa, p. xc. Kashmiri poet king of about late 6th century.
T.R. Chintamani, Fragments of Mātṛguptācārya, Journal of Oriental Research Madras, vol. 2 (1928), pp. 118-128. An attempt is made to trace available quotations from his works, since none of them have otherwise survived. He was a poet at the court of Harṣavardhana (aka Vikramāditya), as recorded in the history by Kalhaṇa.