Robert en Bertrand ("Robert and Bertrand") is a Flemish comic strip series set during the 19th century, in the Low Countries and France. The comic series was created by cartoonist Willy Vandersteen, known for the Suske en Wiske (Spike and Suzy) series. Vandersteen drew inspiration from the main characters in a 19th-century play written by Benjamin Antier and Fréderick Lémaître and from the novels of the same name by Koen Ravestein. Source: Wikipedia (en)