We have heard that although powerful kings like Maharaja Prthu and Maharaja Gaya achieved proprietorship over the seven dvipas, they could not achieve satisfaction or find the end of their ambitions

Expressions researched:
"We have heard that although powerful kings like Maharaja Prthu and Maharaja Gaya achieved proprietorship over the seven dvipas"

SB Canto 8

SB 8.19.23, Translation:

We have heard that although powerful kings like Mahārāja Pṛthu and Mahārāja Gaya achieved proprietorship over the seven dvīpas, they could not achieve satisfaction or find the end of their ambitions.