Genealogies from Yayāti’s Sons to the Yadu Dynasty; Romapāda–Ṛṣyaśṛṅga; Kārtavīryārjuna; and the Rise of Yādava Branches
चक्रु: स्वनाम्ना विषयान् षडिमान् प्राच्यकांश्च ते । खलपानोऽङ्गतो जज्ञे तस्माद् दिविरथस्तत: ॥ ६ ॥
cakruḥ sva-nāmnā viṣayān ṣaḍ imān prācyakāṁś ca te khalapāno ’ṅgato jajñe tasmād divirathas tataḥ
These six sons, headed by Aṅga, founded six eastern realms, each known by the name of its ruler. From Aṅga was born Khalapāna, and from Khalapāna came Diviratha.
This verse notes that rulers established regions (viṣayas) and often named them after themselves, showing how kingdoms and provinces became identified with royal lineages.
Śukadeva Gosvāmī speaks this to King Parīkṣit while narrating the dynastic histories (vaṁśānucarita) of renowned royal lines.
They teach continuity of dharma through generations and help devotees place major spiritual events and personalities within the larger sacred history preserved by the Bhāgavatam.