http://www.william-shakespeare.info/william-shakespeare-biography-brothers-and-sisters.htm
http://www.kirjasto.sci.fi/shakespe.htm
http://www.william-shakespeare.org.uk/facts-about-william-shakespeare.htm
http://www.shakespeare4kidz.com/romeo-and-juliet-facts-and-trivia.html
http://www.william-shakespeare.org.uk/globe-theatre-fire.htm
