Grand Princess is a Grand-class cruise ship owned by Princess Cruises. Built in 1998 by Fincantieri Cantieri Navali Italiani in Monfalcone, Italy, with hull number 5956, at a cost of approximately US$450 million. She was the largest and most expensive passenger ship ever built at the time. Grand Princess was the flagship in the Princess Cruises fleet until the new Royal Princess took that title in June 2013.