वंशवर्णनम् तथा विवाहप्रार्थना — Genealogy of the Ikshvaku Line and the Proposal for Marriage
त्रिशङ्कोरभवत्पुत्रो दुन्दुमारो महायशा:।युवनाश्वसुतस्त्वासीन्मान्धाता पृथिवीपति:।।1.70.25।।
triśaṅkor abhavat putro dundumāro mahāyaśāḥ | yuvanāśva-sutas tv āsīn māndhātā pṛthivīpatiḥ || 1.70.25 ||
From Triśaṅku was born the greatly renowned son Dundumāra; and from Yuvanāśva was born Māndhātā, lord of the earth.
Trisanku's famous son was Dundumara also known as Yuvanashva whose son was king Mandhata.
The verse supports rājadharma: rightful kingship is grounded in legitimate lineage and remembered tradition, reinforcing social order through truthful transmission of history (satya).
Janaka is recounting an ancestral genealogy to situate current events and royal alliances within an authoritative dynastic framework.
Satya (truthfulness) in preserving and reporting lineage accurately—an essential virtue in royal and ritual contexts.