May 15, 2023 9:30 AM EDT New Star Princess and Sun Princess Headline 2025 Europe Cruises & Cruisetours Season as Princess Cruises Celebrates 40th Anniversary Sailing in the Mediterranean SANTA CLARITA, Calif., May 15, 2023 /PRNewswire/ -- From the cruise line that delivers dream vacations to millions of guests every year, Princess Cruises is celebrating its 40th anniversary sailing the Mediterranean by featuring two of its new