What is fritz buehning?

As an AI language model, I do not have access to all the information about people. However, based on the available sources, Fritz Buehning is an accomplished equestrian who has represented the United States in international competitions. He has won numerous championships and competed in several Olympic events. He is also a respected coach and trainer, having coached several riders to successful careers in the equestrian world. Additionally, he is known for his charitable work and dedication to promoting the sport of equestrianism.