No, despite the name Lara this has nothing to do with Doctor Zhivago, but was a failed attempt to cash in on the success of El Cid.
The film begins and ends with a minstrel, Frankie Avalon, strumming his lute, riding his ass among the ruins of a castle as he prepares to tell us the story of Fernán González, Count of Burgos, but before that Count of Lara.