Corrected entry: The narrator is telling ('According to a report in the Saint James Chronic...') that Lady Lyndons father, Charles Lyndon (played by Frank Middlemass), died at Spa, in the Kingdom of Belgium. There's no year mentioned in this scene, but at the end of the movie (a few years later), when Lady Lyndon signs a cheque for Barry, we can see on this cheque the year 1789. The Kingdom of Belgium did not yet exist in 1789: Belgium became a Kingdom in 1831 (21st of July to be exact). (01:37:00)
Factual error: While Stanley Kubrick boasted about the authenticity of the candlelit interiors, he must have missed the little drawing of a steam train on a period map - 40 years before trains were invented.
Narrator: Barry - had now arrived at the pitch of prosperity and by his own energy had raised himself to a higher sphere of society. Having procured his majesty's gracious permission, to add the name of his lovely Lady, to his own. Henceforth, Redmond Barry assumed the style and title of: Barry Lyndon.