As the plot is not woven around a single pivotal action, the inextricable maze of most cunningly contrived episodes are seen to be linked, first, with the quest of beautiful Angelica by love-smitten Orlando and the other enamored knights, then with the defense of Albracca by Angelica's father, the King of Cathay, against the beleaguering Tartars, and, finally, with the Moors' siege of Paris and their struggle with Charlemagne's army.