Richard III (play) "Hamlet" is shorter than its Quarto counterpart. The play is often abridged; for example, certain peripheral characters are removed entirely. In such instances, extra lines are often invented or added from elsewhere in the sequence to establish the nature of characters' relationships. A further reason for abridgment is that Shakespeare assumed that his audiences would be familiar with his "Henry VI" plays and frequently made indirect references to events in them, such as Richard's murder of Henry VI or the defeat of Henry's wife, Margaret. "House of York" "House of Lancaster" "Woodville family" "Richard III's group" "Earl of Richmond's group"
Shakespeare authorship question signatures, which they characterise as "an illiterate scrawl", is interpreted as indicating that he was illiterate or barely literate. All are written in secretary hand, a style of handwriting common to the era, particularly in play writing, and three of them utilize breviographs to abbreviate the surname. In his surviving signatures William Shakespeare did not spell his name as it appears on most Shakespeare title pages. His surname was spelled inconsistently in both literary and non-literary documents, with the most variation observed in those that were written by hand. This is taken as evidence that he was not the same