Where: Aachen, Germany
When: August 11 - 23, 2015
More: The Championships are held every two years; this is the first time that the European Championships for the five disciplines competed here - jumping, dressage, driving, vaulting, and reining - will be held at the same venue. (Eventing, however, is held separately)
Fun Fact: The Championships were actually scheduled for a week later, yet were moved up at the request of television broadcasters.
Official: http://www.aachen2015.de