Roland

Roland (Frankish: Hruodland) (died 15 August 778) was a Frankish military leader under Charlemagne who became one of the principal figures in the literary cycle known as the Matter of France. The historical Roland was military governor of the Breton March, responsible for defending Francia's frontier against the Bretons. His only historical attestation is in Einhard's Vita Karoli Magni, which notes he was part of the Frankish rearguard killed by rebellious Basques in Iberia at the Battle of Roncevaux Pass.

https://en.wikipedia.org/wiki/Roland

http://www.mainlesson.com/display.php?author=evans&book=kings&story...

Das Hindernis nutzen baskische (oder gascognische?) Krieger für einen Überfall auf die Nachhut des riesigen Heeres, die sie auf dem Pass von Ronce(s)vaux in einem Hinterhalt angreifen. Anführer dieser Nachhut ist jener bretonische Markgraf namens Hruodlandus (736–778), der dem Rolandslied seinen Namen gibt. (Französische Literaturgeschichte - Jürgen Grimm, ‎Susanne Hartwig - 2016)