Robin Hood no daibôken

Robin's palace was burned to ashes by the order of Alwyn, the Baron of Nottingham. Robin and his cousins Will, Winifred and Jenny flee into Sherwood Forest, hoping to escape persecution. They end up encountering a group of bandits led by Little John, who dubs himself as Big John during the beginning of the series, until Robin pokes fun renaming him "Little John" for playing with a pussycat. (wiki)