Srimad-Bhagavatam: Canto 12 - Chapter 1 - Verse 15-17

Sanskrit:

अग्निमित्रस्ततस्तस्मात् सुज्येष्ठो भविता तत: ।वसुमित्रो भद्रकश्च पुलिन्दो भविता सुत: ॥ १५ ॥ततो घोष: सुतस्तस्माद् वज्रमित्रो भविष्यति ।ततो भागवतस्तस्माद् देवभूति: कुरूद्वह ॥ १६ ॥शुङ्गा दशैते भोक्ष्यन्ति भूमिं वर्षशताधिकम् ।तत: काण्वानियं भूमिर्यास्यत्यल्पगुणान्नृप ॥ १७ ॥

ITRANS:

agnimitras tatas tasmātsujyeṣṭho bhavitā tataḥvasumitro bhadrakaś capulindo bhavitā sutaḥ

Translation:

My dear King Parīkṣit, Agnimitra will follow as king, and then Sujyeṣṭha. Sujyeṣṭha will be followed by Vasumitra, Bhadraka, and the son of Bhadraka, Pulinda. Then the son of Pulinda, named Ghoṣa, will rule, followed by Vajramitra, Bhāgavata and Devabhūti. In this way, O most eminent of the Kuru heroes, ten Śuṅga kings will rule over the earth for more than one hundred years. Then the earth will come under the subjugation of the kings of the Kāṇva dynasty, who will manifest very few good qualities.

Purport:

According to Śrīla Śrīdhara Svāmī, the Śuṅga dynasty began when General Puṣpamitra killed his king, Bṛhadratha, and assumed power. After Puṣpamitra came Agnimitra and the rest of the Śuṅga dynasty, which lasted for 112 years.