Their occupation of Ancient Libya is first attested in Egyptian language texts from the New Kingdom, especially from the Ramesside Period. The earliest occurrence is in a Ramesses II inscription. There were no vowels in the Egyptian script. The name Libu is written as rbw in Egyptian hieroglyphs. In the Great Karnak Inscription Merneptah describes how hostilities between Egypt and Libya broke out in his regnal year 5 (1208 BCE) and how a coalition of Libu and Sea Peoples led by the chief of the Libu Meryey was defeated.Ramesses III defeated the Libyans in the 5th year of his reign, but six years later the Libyans joined the Meshwesh and invaded the western Delta and were defeated again.Libu appears as an ethnic name on the Merneptah Stele, also known as the Israel Stele.
This name Libu was taken over by the Greeks of Cyrenaica, who co-existed with them. Geographically, the name of this tribe was adopted by the Greeks for "Cyrenaica" as well as for northwestern Africa in general.
In the neo-Punic inscriptions, Libu was written as Lby for the masculine noun, and Lbt for the feminine noun of Libyan. The name supposedly was used as an ethnic name in those inscriptions.
Great Chiefs of the Libu
In the Western Nile Delta, some time during the 22nd Dynasty of Egypt flourished a realm of the Libu led by "Great Chiefs of the Libu". Those rulers soon formed a dynasty, and they often had local "Chiefs of the Ma(shuash)" as their subordinates. The dynasty culminated with the chiefdom of Tefnakht who, despite holding both the titles of "Great Chief of the Libu" and of "Chief of the Ma" at Sais, was more probably of Egyptian ethnicity rather than either Libu or Ma. Later, Tefnakht claimed for himself even the pharaonic titles, founding the 24th Dynasty.
Here follows the succession of the known "Great Chiefs of the Libu". They used to date their monuments following the regnal years of the contemporary pharaoh of the 22nd Dynasty.
^Zimmermann, K. (2008). "Lebou/Libou". Encyclopédie berbère. 28-29 | Kirt?sii - Lutte. Aix-en-Provence: Edisud. pp. 4361-4363.
^Clark, Desmond J. (ed.) (1982) "Egypt and Libia" The Cambridge History of Africa: From the earliest times to c. 500 BC volume I, Cambridge University Press, Cambridge, England, p. 919, ISBN0-521-22215-X
^Colleen Manassa, : "The seventy-nine line inscription is located on the interior of the east wall of the "Cours De la Cachette," directly north of a copy of the Hittite treaty from the reign of Ramesses II and in conjunction with other reliefs of Merneptah (PM II, p. 131 )... Unfortunately, the excavation of the Cours De la Cachette between 1978-1981 by the French expedition at Karnak did not discover any new blocks belonging to the Great Karnak Inscription of Merneptah, although it did demonstrate that the court was filled with many ritual and religious scenes in addition to its known military themes (F. LeSaout, "Reconstitution des murs de la Cours De la Cachette," Cahiers De Karrah VII (1978-1981) [Paris, 1982], p. 214)."
^J. H. Breasted, Ancient Records of Egypt, Part Four, Chicago 1906, §§83ff. Afterward, the name appeared repeatedly in other pharaonic records.
^[...] The vile chief of the Libu who fled under cover of night alone without a feather on his head, his feet unshod, his wives seized before his very eyes, the meal for his food taken away, and without water in the water-skin to keep him alive; the faces of his brothers are savage to kill him, his captains fighting one against the other, their camps burnt and made into ashes [...]After Gardiner, Alan Henderson (1964) Egypt of the Pharaohs: an introduction Oxford University Press, London, p. 273, ISBN0-19-500267-9
^Fage, J. D. (ed.) (1978) "The Libyans" The Cambridge History of Africa: From c. 500 BC to AD 1050 volume II, Cambridge University Press, Cambridge, England, p. 141, ISBN0-521-21592-7
^Thomas C. Oden (2011). Early Libyan Christianity: Uncovering a North African Tradition. InterVarsity Press. p. 51. ISBN0830869549.
^P.R. Del Francia, "Di una statuetta dedicata ad Amon-Ra dal grande capo dei Ma Tefnakht nel Museo Egizio di Firenze", S. Russo (ed.) Atti del V Convegno Nazionale di Egittologia e Papirologia, Firenze, 10-12 dicembre 1999, Firenze, 2000, p. 94