Complex sentence: Macbeth is today best known as the subject of William Shakespeare's tragedy "Macbeth" and the many works it has inspired, though it is based on the "Holinshed's Chronicles" (published 1577) and is not historically accurate.
Split into simpler sentences: Macbeth is today best known as the subject of William Shakespeare's tragedy "Macbeth" and the many works it has inspired. However, Shakespeare's Macbeth is based on the "Holinshed's Chronicles" (published in 1577) and is not historically accurate.