Princess Cruises has announced its fourth Royal-class ship will be named Sky Princess.

Sky Princess is scheduled to launch in October 2019 on a series of Mediterranean voyages and will be a sister ship to Royal Princess, Regal Princess and Majestic Princess.

The 3,660-passenger vessel will include a number of the signature elements that feature on Royal-class ships. These include:

· A three-deck central Piazza-style atrium
· Multiple dining, entertainment and retail venues
· A top-deck outdoor “Movie Under the Stars” theatre
· 80 percent of all staterooms with balconies
· The adults-only Sanctuary

· Camp Discovery youth and teen centres
· Dining venues including the Salty Dog Grill, Alfredo’s Pizzeria, Vines Wine Bar, Chef’s Table Lumiere and World Fresh Marketplace

It will also include new innovations with details to be revealed shortly.

The Mediterranean voyages feature 10 departures on eight itineraries, sailing from Barcelona, Rome or Athens.

The first is a seven-day Mediterranean and Adriatic cruise from Athens to Barcelona on October 20, 2019. The voyage can be combined with the following seven-day Barcelona to Rome cruise to form a 14-day Western Mediterranean & Adriatic Medley.

The season will end in November 2019 with a 14-day Spanish Passage from Barcelona to Fort Lauderdale, USA, which can be combined with the previous seven-day Mediterranean cruises to form extended 21-day or 28-day Grand Adventure sailings.

The voyages are available to book from December 14, 2017. Princess guests holding Elite status will have the opportunity to secure their booking a day earlier.

Jan Swartz, Princess Cruises and Carnival Australia group president, said: “Sky Princess continues a Princess Cruises legacy and honours one of our previous ships. When Princess merged with Sitmar Cruises in 1988, Sky Princess joined our fleet and sailed with us for 12 years. Now more than 30 years later, a new Sky Princess will join the fleet featuring our modern design platform and contemporary innovations, offered to exceed our guests’ expectations.”

A fifth Royal-class vessel is similarly under construction and will launch in 2020.