The chimes of Big Ben, which had been silent for a lengthy restoration project, tolled during the event, the second time in two days, before the nation observed two minutes of silence. The bell also rang on Saturday to mark Armistice Day.
Elizabeth is Britain’s longest-reigning monarch, having been crowned in Westminster Abbey on June 2, 1953.
Prince Philip, 96, retired in August from solo public appearances, remarking that he had been “the world’s most experienced plaque-unveiler.”
Charles recently represented his mother on a 10-day tour of four Commonwealth countries: Brunei, India, Malaysia and Singapore. Sunday wasn’t the first time he had stepped in for his mother at the annual wreath-laying ceremony in London: He performed the ritual in 1983 — but while she was in Kenya.
Security was tightened this year, with the authorities employing facial recognition cameras, bag searches, sniffer dogs and body scanners, according to news reports.
On Saturday night, Elizabeth and Philip joined thousands of veterans at Royal Albert Hall for a program honoring British military men and women. The event included hymns, prayers and performances by the Scottish singer-songwriter Emeli Sandé and the English tenor Alfie Boe.