Answer:
A horse.
Step-by-step explanation:
The horse is a common and important animal used in historical as well as fantasy novels/ stories. This important figure is also commonly used in medieval times, most commonly associated with a knight riding it with a sword in hand.
Horses are also commonly used in military or wartime pictures where horsemen will be lined up with their riders and waiting on their leader. Knights have also come to be associated with horses, and their simple image usually stands for a "knight in shining armor". A knight is most commonly represented by a man in full armor riding a horse, and at most times was also representative of chivalry and nobility.