According to Leonti Mroveli: "Gave to Lekan territories from the Sea of Daruband to the river Lomek, to the north up to the great river of Khazareti". In all likelihood, Lekos was the first king on the territory of Dagestan.
In the Georgian sources ethnonym "Leki" is usually used to refer to all the peoples of Dagestan.
There can be several historical backgrounds given. Geographically Georgians are close to the Tsakhurs and Avars, who are "Leki" for Georgians in the first place.
History of Dagestan is closely connected with Kazi-Kumukh. Shamkhals of Lakia and the kings of Georgia had centuries-long history of relations that could be reflected in the name the Georgians give to Dagestanis.
In the history of Georgia 18th century is called "Leki-anoba" (i.e. the invasion of Dagestanis) that had direct relevance to military interventions of Dagestanis into Georgia, and more of the Avar ruler.
- М. Джанашвили. Известия грузинских летописей и историков о Северном Кавказе и России. — «СМОМПК», Тифлис, 1897.
- П. К. Услар. Этнография Кавказа. — Тифлис, 1889.
- P.M. Магомедов, В. П. Дзагурова. Народы Советского Дагестана. — Махачкала, с.20.