If you happen to be in Germany this summer, check out the Frederick the Great exhibition in Potsdam. You'll find the skeleton of Frederick's last and most favourite horse, Conde.
Apparently Frederick was a touch horse-mad. He usually kept no less than 40 saddle horses in his stable. In 1754, he had more 100 horses. Frederick had a number of favourites, but Conde, a piebald gelding, was something special. Frederick fed him with sugar, melons, and figs. Conde even followed the king into the Palace and is reputed to have broken several squares of marble in the hall. Even more particularly, Conde never accompanied Frederick into battle. He was too special for that.
After the king's death, Conde was placed in the royal stud and then transferred to the Veterinary School in Berlin with the charge that particular care be taken of Frederick's favourite. Apparently this order was followed extremely well -- Conde lived to the great age of 38. After his death, his skeleton was articulated and preserved at the Veterinary School, and his skin was stuffed separately. Unfortunately, the skin went up in smoke and flames during a WWII raid, but the skeleton --as you can see-- has survived the centuries just fine.
The exhibition is presented by the Prussian Palaces and Gardens Goundation Berlin-Brandenburg to commemorate the 300th anniversary of the Prussian king's birth. It runs from April 28th until the end of October.
Check out the exhibition's site here: http://www.friederisiko.de/