[2] Locrinus ruled a portion of Britain called Loegria, named after him, which had roughly the boundaries of modern-day England, other than Devon and Cornwall.

Locrinus submitted and married Gwendolen but still secretly loved Estrildis, whom he locked in a cave beneath Trinovantum (London) for seven years.

[4] In the 13th century Prose Merlin, Locrinus is called Logryn, and arrives in Britain a long time after the death of Brutus.

He "a-mended gretly the Citee [London], and made towres and stronge walles enbateiled", and then renamed it from New Troy to Logres, which it continued to be called until after the death of King Arthur.

[5] Locrinus is the subject of the anonymous Elizabethan play Locrine,[6] published in 1595 as "Newly set forth, overseen and corrected by W.S.," on account of which it was later included in the Shakespeare Apocrypha.