In addition there was the now-famous "The Three Queens" operas of Donizetti, "Roberto Devereux" (1970), "Maria Stuarda" (1972), and "Anna Bolena", all of which starred Sills. He established a solid working relationship with Sills, and the feeling was mutual. "I can ask her to try anything onstage," said Capobianco, who directed most of her successes at City Opera and whom Sills regarded as "her" director." Capobianco commented on some of the features which allowed the trio of operas to be presented: "It was a golden era ... We had singers who could act. It was total theatre; drama. It was just a fantastic moment."