Which theater is considered Shakespeare's

Answer 1

Shakespeare actually owned a share in two theatres: the Globe and the Blackfriars. Nowadays, Shakespeare is the most famous of the many people who owned or worked in those theatres, so people get the idea that he owned them all by himself or that the people who attended them would have thought of them as Shakespeare's.

In fact, Shakespeare's contemporaries would have associated both theatres with Richard Burbage, who was the most important actor in the company, much better known to the public than Shakespeare was, and owned a much larger share of the theatres, being the driving force and main financial push behind them.