Complex sentence: The filly would be named Three Troikas, and would go on to race in the colours of Head's wife Ghislaine, would be trained by their daughter Criquette at Chantilly, and would be ridden by their son Freddy.
Split into simpler sentences: The filly would be named Three Troikas, and would go on to race in the colours of Head's wife Ghislaine. She would be trained by their daughter Criquette at Chantilly, and would be ridden by their son Freddy.