Norwegian Cruise Line Holdings has entered into an agreement to sell the Oceania Sirena.

The R-class ship is expected to leave the fleet after its spring 2028 deployment. A buyer has not yet been named.

The 684-guest ship originally launched as the R Four in 1999, operating for Renaissance Cruises. It then joined Princess Cruises where it sailed from 2002 through 2016 before becoming the Sirena for Oceania.

It marks another vessel move for Oceania, which is moving on from its older R-class fleet as the brand has been repositioned into the luxury market.

The 1998-built Regatta has been chartered to myCruises for the next two years while the 2000-built Nautica will be reimagined with less capacity as the Oceania Aurelia and sail on longer itineraries.

That leaves the Insignia as the sole remaining R-class ship in the Oceania’s fleet. The 1998-built ship had previously been sold to Crescent Seas, a residential start up, but the sale fell through.