Two entries with the name Brutus.
A Roman consul mentioned by Nennius and Geoffrey of Monmouth.
He was a descendant of Aeneas and the son of Silvius, who, pursuant to a prophecy, Brutus accidentally killed with an arrow. For this act, he was driven from Italy.
He took his followers to Britain, then called Albion, and he conquered the island from a race of giants. Albion was rechristened Britain in honor of Brutus, and in a similar manner, Brutus’s three sons – Camber, Locrine (Locrinus), and Albanact – gave their names to Cambria (Wales), Logres (England), and Albany (Scotland).
Since Brutus was said to be Britain’s first king, a number of chronicles have Brut in their titles (e.g., Waces Roman de Brut).
Historia Brittonum | Probably Nennius, early 9th century
Historia Regum Britanniae | Geoffrey of Monmouth, c. 1138
King Arthur; or, the British Worthy | John Dryden, 1691
A descendant of the first Brutus and king of the castle Brut.
He was a noble and wealthy lord with many possessions, and one of the most beautiful daughters in Britain. This maiden fell in love with Galahad when he and Sir Bors were lodging at Brut during the Grail Quest. When Galahad rebuffed her advances, she killed herself with his sword.
Brutus accused the two knights of murdering her, but after he was defeated in single combat with Bors, he accepted their explanation and made peace.
Post-Vulgate Queste del Saint Graal | 1230-1240