Gronn, son of Wartok was a young male Klingon who lived in the mid-24th century. At the time, his father was Commander Wartok who intended to embark on a diplomatic mission to the planet Ferenginar in 2371. To accomplish this, he first travelled to Deep Space 9 where he met an old acquiantance in Commander Benjamin Sisko who sent Chief Miles O'Brien along with Cadet Nog to the Ferengi homeworld. Gronn was accompanied by the young Nog where their personalities clashed with one another as the young Klingon did not understand the light hearted Nog. Upon arriving on Ferenginar, Gronn was given a tour of the planet by Nog and first intended to visit the combat facilities in order to observe rather than practice. During his time there, he felt a certain kinship with Nog who had defied his people