Narcogen (firstname.lastname@example.org) writes:
For clarification, the Beowulf of the legend was not, in fact, a Dane at all, but a Geat. However, the Danish king in the story - Hrothgar, whose mead hall is terrorized by the monster Grendel - had a grandfather named Beowulf.
So there's likely no connection between the AI named Beowulf, the AI named Cortana, and the AI named Durandal - except that Bungie has thoroughly mined the Song of Roland as well as other pieces of medieval literature when coming up with names and themes.
Just my $0.02 :-)