SB 8.19.23
sapta-dvipadhipatayo
nrpa vainya-gayadayah
arthaih kamair gata nantam
trsnaya iti nah srutam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
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.