Lucius Artorius Castus, a 2nd-3rd century general sometimes connected with a historical basis for King Arthur.
She is one of the proponents of the theory (or related theories) that states that the historical basis for King Arthur and the Knights of the Round Table were a 2nd-century Roman officer named Lucius Artorius Castus and Sarmatian auxiliary horsemen, which Artorius supposedly commanded in Britain.
The possibility that Lucius Artorius Castus was the inspiration for the figure of Arthur in medieval European literature was first suggested by Kemp Malone in 1924 and has recently been championed by authors C. Scott Littleton and Linda Malcor (who was a research consultant for the 2004 movie King Arthur and on whose hypotheses regarding Artorius the screenplay was based).
Marcus Artorius Bato, generally referred to as simply Bato is a recurring fictional character in the popular children's books The Roman Mysteries by Caroline Lawrence.
There, the ducks meet "King Arthur"—Artorius Riothamus, the last descendant of Lucius Artorius Castus, and find out that he is nowhere near the glorious benevolent ruler history has made him to be; instead, he's a common warlord without much morals to speak of.