List of legendary kings of Britain

Geoffrey's narrative begins with the exiled Trojan prince Brutus, after whom Britain is supposedly named, a tradition previously recorded in less elaborate form in the 9th century Historia Brittonum.

Brutus is a descendant of Aeneas, the legendary Trojan ancestor of the founders of Rome, and his story is evidently related to Roman foundation legends.

The kings before Brutus come from a document purporting to trace the travels of Noah and his offspring in Europe, and once attributed to the Chaldean historian Berossus, but now considered to have been a fabrication by the 15th-century Italian monk Annio da Viterbo, who first published it.

The story became widespread after it was repeated in the 8th century by Bede in his Ecclesiastical History of the English People, who added the detail that after Eleutherius granted Lucius' request, the Britons followed their king in conversion and maintained the Christian faith until the Diocletianic Persecution of 303.

In 1904 Adolf von Harnack proposed that there had been a scribal error in Liber Pontificalis with 'Britanio' being written as an erroneous expansion for 'Britio', a citadel of Edessa, present day Şanlıurfa in Turkey.

[5] Des grantz geanz ("Of the Great Giants"), a 14th-century Anglo-Norman poem, contains a variant story regarding Albion, the oldest recorded name for Britain, and also contains a slightly different list of kings.

The poem also attempts by euhemerism to rationalise the legends of giants; Albina is thus described as being "very tall", but is presented as a human queen, a descendant of a Greek king, not a mythological creature.

Scota first appeared in literature from the 11th or 12th century and most modern scholars interpret the legends surrounding her to have emerged to rival Geoffrey of Monmouth's claims that the descendants of Brutus (through Albanactus) founded Scotland.

[17] Hu Gadarn is described by Morganwg in his triads as being the earliest inhabitant of Britain having travelled from the "Summerland, called Deffrobani, where Constantinople now stands" in 1788 BC.

The Welsh clergyman Edward Davies included this myth in his Celtic Researches on the Origin, Traditions and Languages of the Ancient Britons (1804): First, the bursting of the lake of waters, and the overwhelming of the face of all lands, so that all mankind drowned, excepting Dwyvan and Dwyvach, who escaped in a naked vessel and from then the Island of Britain was re-peopled.Several 19th-century Christian authors—for example, Henry Hoyle Howorth[19]—interpreted this myth to be evidence for the Biblical flood of Noah, yet in Morganwg's chronology Dwyfan and Dwyfach are dated to the 18th or 17th century BC, which does not fit the Biblical estimate for the Noachian deluge.

[21][22] Revd F. R. A. Glover, M.A., of London in 1861 published England, the Remnant of Judah, and the Israel of Ephraim in which he claimed Tea Tephi was one of Zedekiah's daughters.

These dates are inconsistent with the British Israelite literature which dates Tea Tephi to the 6th century BC, but later British Israelites, such as Herman Hoeh (Compendium of World History, 1970), claimed that the Milesian Royal House (including Tea) was from an earlier blood descendant of the Davidic Line who entered Britain around 1000 BC (citing Ruaidhrí Ó Flaithbheartaigh's reduced chronology).

Some British Israelites identify Baruch ben Neriah with a figure called Simon Berac or Berak in Irish myth, while Jeremiah with Ollom Fotla (or Ollam, Ollamh Fodhla).

In 2001, the British-Israel-World Federation wrote an article claiming they no longer subscribed to these two identifications, but still strongly stick to the belief that the British monarchy is of Judahite origin.

[25][29] In an earlier publication in 1982, Covenant Publishing Co. admitted that Tea Tephi could not be traced in Irish literature or myth and may have been fabricated by Glover, but they clarified they still believed in the Milesian Royal House-Davidic Line bloodline connection (popularised by Hoeh).

Illustration of Cadwaladr Fendigaid from Geoffrey of Monmouth's Historia Regum Britanniae. Cadwaladr was also a historical king.