Princess Cruises was founded by Stanley McDonald in 1965 when he chartered the cruise ship Princess Patria for a Mexican Riviera Cruise from Los Angeles. The ship did not have air conditioning and therefore was not suitable for tropical cruises.
In 1967 the company chartered the ship Princess Italia and used the ship to on its Mexican Riviera cruises and on Alaskan cruises from San Francisco.
The company became famous in 1977 when one of its ships, the Pacific Princess, was featured in the television series The Love Boat.
Today Princess Cruise Lines has eighteen cruise ships ranging from the Ocean Princess which has a capacity of 680 passengers and 373 crew and was built in 1999 and the Regal Princess which has a capacity of 3,600 passengers and 1,400 crew and was built in 2014.
In February 2020, passengers aboard the Princess Diamond became infected with the coronavirus, and many passengers were forced to stay in their cabins. As of February 27th, 4 people aboard the ship have died from the coronavirus.
The ship has become a floating quarantine location, with passengers being told to spend 2 weeks inside their cabins. If the passengers then show no signs of the virus, they can leave.
Princess Cruise Lines has about 1.7 million passengers each year and is currently owned by Carnival Cruise Lines.