Filming for the “Game of Thrones” prequel series “A Knight of the Seven Kingdoms” has begun

As HBO announced, filming for the upcoming “Game of Thrones” prequel spinoff series “A Knight of the Seven Kingdoms: The Hedge Knight” has begun in Belfast, Ireland.

As reported, the show is based on the characters Ser Duncan the Tall and his young squire Egg, who appear in George RR Martin’s novella The Hedge Knight. Peter Claffey and Dexter Sol Ansell play the respective characters.

HBO gives a little hint: “A century before the events of Game of Thrones, two unlikely heroes roamed Westeros: a young, naive but brave knight, Ser Duncan the Tall, and his young squire Egg.”

The broadcaster continues: “The action takes place in a time when the Targaryen line still holds the Iron Throne and the memory of the last dragon has not yet faded from the minds of the living. Great destinies, powerful enemies and dangerous heroics await these unlikely and incomparable friends.”

HBO also announced that Finn Bennett will star as Aerion Targaryen, Bertie Carvel will play Baelor Targaryen, and Sam Spruell will play Maekar Targaryen.

The series will also star Daniel Ings as Ser Lyonel Baratheon and Tanzyn Crawford as Tanselle.

Director and executive producer Owen Harris will direct three episodes of the six-part series, while “Lessons in Chemistry” and “Hanna” veteran Sarah Adina Smith will direct the remaining three episodes.