Quote from : The Adventures of Robin Hood Movie

[first title cards]
Title card: In the year of Our Lord 1191 when Richard, the Lion-Heart, set forth to drive the infidels from the Holy Land, he gave the Regency of his Kingdom to his trusted friend, Longchamps, instead of to his treacherous brother, Prince John.
Title card: Bitterly resentful, John hoped for some disaster to befall Richard so that he, with the help of the Norman barons, might seize the throne for himself. And then on a luckless day for the Saxons...