SB 12.1.4
sisunagas tato bhavyah
kakavarnas tu tat-sutah
ksemadharma tasya sutah
ksetrajñah ksemadharma-jah
Translation:
Nandivardhana will have a son named Sisunaga, and his son will be known as Kakavarna. The son of Kakavarna will be Ksemadharma, and the son of Ksemadharma will be Ksetrajña.