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

Set to launch in October 2019, Sky Princess is scheduled to sail Mediterranean itineraries.

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

The 3,660-passenger ship will be the sister vessel to Royal Princess, Regal Princess and Majestic Princess.

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.”