Tragedy strikes Downton Abbey when Lady Sybil (Jessica Brown Findlay) experiences complications during child birth. 
Subscribe to Downton Abbey US: http://goo.gl/tvsby7​
Let us know what you think the biggest tragedy to hit Downton is?

Welcome to the official US YouTube channel for Downton Abbey, Julian Fellowes’ critically acclaimed, multiple BAFTA, Golden Globe and 13 time EMMY award-winning drama. Subscribe to Downton Abbey US to fully immerse yourself in life at Downton; relive some of your favourite moments and dramas with the Downton Abbey Love Stories, catch behind the scenes action and exclusive interviews with all the cast and keep up-to-date with latest news and clips from the series.

Google+: http://goo.gl/7QfEH3​
Twitter: https://twitter.com/masterpiecepbs​
Facebook: https://www.facebook.com/masterpiecepbs​
Official Website: http://www.pbs.org/wgbh/masterpiece/d...​