There are more than enough examples of statues where the individual is on a horse, but do you know what they actually mean? Delve deeper into it and you will find that there are different ideas being employed and that the statue itself is able to tell us more about the individual than you perhaps expected.
Look at the horse in particular. If the horse has both front legs in the air, then it means the person on the horse died in battle. If one leg is on the ground, then they eventually died from injuries that were initially sustained on the battlefield. If both front legs are on the ground, then they eventually died from natural causes.
Of course, you then have to look closer at the inscription that accompanies the statue to determine when they died and the battle they were involved in, but just by studying the horse, you at least have an idea what to expect.