TSS (RMS) Mona’s Queen (IV) was a passenger vessel operated by the Isle of Man Steam Packet Company from 1946 to 1962.

[6] Mona’s Queen mainly operated between Liverpool or Fleetwood to Douglas, giving reliable service for 16 years until her register was closed on 22 October 1962.

[6] With the introduction of the Company's new car ferry Manx Maid scheduled for 1962, coupled with the closing of the Port of Fleetwood, the decision was taken by the Steam Packet Board to dispose of one of the passenger steamers.

[8] Whilst the slightly older King Orry may have been the obvious vessel to be disposed of, she had been fitted out for winter service, and so the decision was taken that the Mona's Queen would be put up for sale as a consequence, reducing the number of passenger steamers from 8 to 7.

[9] As part of her 1964 programme, Fiesta cruised from Nice to Bastia, Palermo, Tunis, Palma, Majorca and Port-Vendres.

[6] Fiesta and five other early Chandris ships were offered for sale in January 1972 while laid up at Eleusis Bay (Piraeus).