One verse

Srimad Bhagavatam 9.20.7

9.20.7

तस्य मेधातिथिस्तस्मात् प्रस्कन्नाद्या द्विजातय: । पुत्रोऽभूत् सुमते रेभिर्दुष्मन्तस्तत्सुतो मत: ॥ ७ ॥

tasya medhatithis tasmat praskannadya dvijatayah putro ’bhut sumate rebhir dusmantas tat-suto matah

tasya
of him (Kanva)
medhatithih
a son named Medhatithi
tasmat
from him (Medhatithi)
praskanna-adyah
sons headed by Praskanna
dvijatayah
all brahmanas
putrah
a son
abhut
there was
sumateh
from Sumati
rebhih
Rebhi
dusmantah
Maharaja Dusmanta
tat-sutah
the son of Rebhi
matah
is well-known.

The son of Kanva was Medhatithi, whose sons, all brahmanas, were headed by Praskanna. The son of Rantinava named Sumati had a son named Rebhi. Maharaja Dusmanta is well known as the son of Rebhi.