"We heard today that he’s slightly improving," she reportedly said during the engagement. "So, that’s very good news. We’ll keep our fingers crossed."
Queen Elizabeth II's 99-year-old husband was first hospitalized on Feb. 16 at the advice of his doctors. At the time, Buckingham Palace called the hospitalization "a precautionary measure" for "observation and rest."
Several days after he was first hospitalized, a royal source told ET, "The doctor is acting with an abundance of caution. The Duke remains in good spirits."