From A Wiki of Ice and Fire
Rhogoro is the son and khalakka of the Dothraki horselord, Khal Moro.
A Game of Thrones
Rhogoro attends the presentation of Daenerys Targaryen to Khal Drogo in Pentos with his father.
- ↑ 1.0 1.1 A Game of Thrones, Chapter 3, Daenerys I.