Although Mulgrave Castle was launched in 1813, she first appeared in Lloyd's Register in 1815 with J. Ralph, master, Tindal & Co., owners, and trade London–Jamaica.

On the 13th Valiant saw Mulgrave Castle and Friends, Howell, master, also dismasted, bearing for Halifax, Nova Scotia.

Philippa was seeking water and supplies, and the initial report was that both intended to leave towards the end of the month.

Don Antonio had intended to have Mulgrave Castle surveyed and condemned in order that he might profit from the disposal of her cargo.

Don Antonio incarcerated Ralph and Nichols, put fifty soldiers aboard Phillipa, and declared one of her passengers, a Captain Harrington a prisoner on parole.

Captains Nichols, Ralph, and Harrington, as well as the other passengers on the vessels, signed a letter of protest to Don Antonio, informing him that they would bring the matter up with the "Right Hon.

[10] A letter from the Cape of Good Hope dated 4 September 1825 reported that the night before Mulgrave Castle had been sailing from London to Bombay and coming into Table Bay when she ran ashore about half a mile inside the Green Point Lighthouse, Cape Town.