The Original X.O Created by Maurice Hennessy in 1870 for his circle of friends, X.O was born at a turning point in history and introduced a new style of cognac: bold, rich and complex. Long aging for greater intensity The 100 eaux-de-vie assembled to create X.O were aged for a long time – some for 30 years – to give an unparalleled robustness. Maurice Hennessy gave the name X.O to this unique “extra old” cognac.