Lucky Luke Intégrale, tome 13

Le Grand Duc is a Lucky Luke adventure written by Goscinny and illustrated by Morris. It is the fortieth book in the series and it was originally published in French in the year 1973 and by Cinebook in 2011 under the title of The Grand Duke. The story is loosely based on the Grand Duke Alexei Alexandrovich of Russia, who undertook a tour of America in 1870–1871.