*WARNING SPOILERS. LAST CHANCE TO GO AWAY*
In the episode that aired last Sunday, Ygritte was killed in battle by the boy of whose parents she killed. In this alternate version, a different 'Olly' does the killing.
Game of Thrones is an American fantasy television series produced by the HBO cable network. It is based on the novel series A Song of Ice and Fire, written by George R.R. Martin who serves as a producer, creative consultant and scriptwriter on the television series. David Benioff and D.B. Weiss created the television series and serve as executive producers, showrunners and the main writers.