'War and Peace' and most of Shakespeare are both brilliant, even if WS did make a few egregious errors, such as giving the ancient Romans clocks and Bohemia a coast, and even if Tolstoy (in the Maude translation, at least) was excessively fond of the "now this, now that" figure of speech.
The brummie bard was simply a toadie - a sycophantic chap who tried to sur the edges of power for gain, with a pretty turn of phrase thrown in.
The aforementioned 'Macbeth' is a prime example.
The Stewarts claimed some descent from Duncan's branck of the MacMalcolm family...Macbeth was from a cadet branch, primogentture not being a way in which kings were chosen.
Our Will, in order to please James VI, ignored, twisted and franlkly polluted the real story to please himself.
Far from killing nice old Duncan in bed, Duncan was killed in battle - and he was younger than Macbeth.
So successful was Macbeth that he ruled for 17 years, managing to go on pilgrimage to Rome halfway through his rule - unheard of in the violent climate of Alba at the time.
So confident was he that he left his queen, Grouoch, in charge while he was away.
Yes, Malcolm killed Macbeth in battle (not a siege), but Macbeth was successded, not by Malcolm, but by Lulach, Grouoch's son, ruling for nine months while Malcom eventually gained the throne of Alba with aid from the Norse forces of Orkney and Ypork.
Oh, and not a witch in sight.
That was another nod to James VI's obsession with witchcraft.
All in all, sycophantic rubbish which Willie dribbkled out in lieu of drama.