HBO's Game of Thrones is infamous for its weddings. While some capture the royal splendor, things almost always go wrong for either the guests or the ones getting married. The Red Wedding is a glaring example of Game of Thrones' tragic weddings, and the one after that - the Purple Wedding keeps on with it. The reason why most weddings on Game of Thrones don't end well is simple: Westeros is a dangerous place where politicking takes precedence over everything else, and marriage is merely a political institution. The head of one such Great House of Westeros, Lord Tywin arranged marriages to strengthen House Lannister, and this practice ended up hurting the interests of his enemies.