[Main Spoilers] Shakespeare in GoT

In Game of Thrones, there are many Shakespearean references and events. The ending of Season 5, the killing of Jon Snow, is very much like Julius Caesar's death with the "Et tu Brute?" with Ollie at the end. Also the cooking the Freys into a pie is done in Titus. Are there anymore references/allusions to Shakespeare in Game of Thrones and do you think there will be more in the future. Please comment below.