The chronicle then tells the Song of Roland material: at the battle of Roncevaux Pass, Charlemagne's rearguard, which includes Roland, is ambushed by the troops of brothers Marsile and Baligant, kings of Zaragoza, who have bought the aid of the traitor Ganelon. Roland kills Marsile, but is mortally wounded and blows his horn to recall Charlemagne's army.
The chronicle describes the Song of Roland story: at the battle of Roncevaux Pass, Charlemagne's rear guard, which includes Roland, encounters an ambush by the troops of brothers Marsile and Baligant, kings of Zaragoza, who have secured the aid of the traitor Ganelon. Roland kills Marsile but is fatally wounded and signals for Charlemagne's army to intervene.