"Valar Morghulis" is the tenth and final episode of the second season of HBO's medieval fantasy television series Game of Thrones, and the 20th overall. The episode was written by series co-creators David Benioff and D. B. Weiss and directed by Alan Taylor. It first aired on June 3, 2012. The episode concludes many storylines featured throughout the second season, such as Tyrion Lannister's position as Hand of the King, Stannis Baratheon's impending invasion, and Sansa Stark's betrothal to Joffrey Baratheon.
https://en.wikipedia.org/wiki/Valar_Morghulis