The Mitra dynasty refers to a group of local rulers whose name incorporated the suffix "-mitra" and who are thought to have ruled the area of Mathura from around 150 BCE to 50 BCE. They are not known to have been satraps nor kings, and their coins only bear they name without any title, therefore they are sometimes simply called "the Mitra rulers of Mathura". Alternatively, they have been dated from 100 BCE to 20 BCE. The Mitra dynasty was replaced by the Indo-Scythian Northern Satraps from around 60 BCE.
In addition to the Mitra dynasties of Saketa (Kosala kingdom) and Mathura, there were Mitra dynasties in Ahichchhatra (Panchala kingdom) and Kaushambi (Vatsa kingdom). During the 1st century BCE to 2nd century CE, the Mitras of Kaushambi also appear to have extended their hegemony over Magadha (including Pataliputra), and possibly Kannauj as well.
Seven rulers of Mathura are known:
These rulers are never mentioned as "Kings" or Raja on their coins: there is therefore a possibly that they may only have been local rulers and vassals to larger king. Gomitra II and Brahmamitra especially are known for their large number of coins, which is not so much the case for other rulers.
Relation with the Indo-Greeks
From numismatic, literary and epigraphic evidence, it seems that the Indo-Greeks had control over Mathura at some time, especially during the rule of Menander I (165–135 BCE). The control of Mathura seems to have continued for some time under the successors of Menander, with Strato I, Antimachus and Apollodotus II, where they were facing the territory of the Sungas. Coins of Menander and Strato can be found in the area of Mathura, and Ptolemy records Menander as having ruled as far as Mathura (Μόδουρα) in Book VII, I, 47 of his Geographia. An inscription in Mathura discovered in 1988 mentions "The last day of year 116 of Yavana hegemony (Yavanarajya)", also attesting presence of the Indo-Greeks in the 2nd century BCE. The inscription would date to the 116th year of the Yavana era (thought to start in 186–185 BCE) which would give it a date of 70 or 69 BCE. The Yavanarajya inscription reads:
On this day, the year one hundred sixteen, 116, of the Yavana kingdom, in the fourth month of winter on the thirtieth day...
[This is] the well and tank of Ahogani, the mother of the merchant Virabala, who was the son of Ghosadatta, a brahmin of the Maitreya clan, with [her] son Virabala, daughter-in-law Bhaguri, and grandsons Suradatta, Rsabhadeva, and Viraddata.
May (their) merit increase— Mathura Yavanarajya inscription.
From this time also (circa 150 BCE), archaeological research at Mathura reports an important growth of the city and extensive building of fortifications. Stone sculptures in Mathura are also known from this period onwards, although Indo-Greek artistic influence cannot be readily seen.
Given the suggestions of Greek presence and control concomitantly with the rule of the Mitra dynasty in the same time frame (150–50 BCE), it is therefore thought that there may have been a sort of tributary relationship between the Mitra dynasty and the Indo-Greeks to the west. Numerous coins of Rajuvula have been found in company with the coins of the Strato group in the Eastern Punjab (to the east of the Jhelum) and also in the Mathura area.
Shungas to the east
The period in which the Mitra dynasty ruled in Mathura roughly corresponds to the Hindu Sunga dynasty (180 BCE–80 BCE), however it doesn't seem that the Shungas ruled in Mathura or Surasena since no Shunga coins or inscriptions have been found there.
"Datta" rulers of Mathura
Another dynasty of local rulers, named the "Datta kings" is also known to have ruled in Mathura. These rulers are known as Seshadatta, Ramadatta, Sisuchandradatta and Sivadatta. The coins of Ramadatta usually represent a Lakshmi standing, and facing elephants. It is thought that they came just before, and were replaced by the Mitra dynasty.
- History of Early Stone Sculpture at Mathura: Ca. 150 BCE - 100 CE, Sonya Rhie Quintanilla, BRILL, 2007, p.8-10 
- Indian Numismatic Studies K. D. Bajpai, Abhinav Publications, 2004, p.105 
- On the Cusp of an Era: Art in the Pre-Kuṣāṇa World, Doris Srinivasan BRILL, 2007, p.320 
- Ayodhya Revisited by Kunal Kishore p.24 
- K. D. Bajpai (October 2004). Indian Numismatic Studies. Abhinav Publications. pp. 37–39, 45. ISBN 978-81-7017-035-8.
- Published in "L'Indo-Grec Menandre ou Paul Demieville revisite," Journal Asiatique 281 (1993) p.113
- History of Early Stone Sculpture at Mathura: Ca. 150 BCE - 100 CE, Sonya Rhie Quintanilla, BRILL, 2007, p.255 
- Mathurā and Its Society: The ʼSakæ-Pahlava Phase, Bratindra Nath Mukherjee, Firma K.L.M., 1981, p.9
- History of Early Stone Sculpture at Mathura: Ca. 150 BCE - 100 CE, Sonya Rhie Quintanilla, BRILL, 2007, p.170 
- Dimensions of Human Cultures in Central India, A. A. Abbasi, Sarup & Sons, 2001, p.145-146