Markandeyapurana 53.12

53.12

sasamudrākaravatī prativarṣaṃ tretāyuge tathā /
priyavratasya putraistaiḥ pautraiḥ svāyambhuvasya ca //

Now Manu Svāyambhuva had ten sons equal to himself, by whom all this tributary earth with its seven continents, with its mountains, and with its oceans was peopled according to its countries. It was first peopled in the Svāyambhuva period in the Kṛta and Tretā ages by the sons of Priyavrata and the grandsons of Svāyambhuva.