She is named as one of his Majesty's ships in 1660, commissioned by James, Duke of York who at that time was commander (Lord High Admiral of England) of the Royal Navy.
[3] Rosebush was commissioned as a fourth rate being fitted out in June of 1653 under command of Captain Valentine Tatnell (1653 - 1654), and was stationed at St Helen's in the winter of 1653-54.
[3] On 1 January 1660, by order of James, the vessel was to be fitted out "for a voyage to Jamaica" and to be "delivered into possession of Colonel Thomas Middleton".
[7] The last entry Pepys makes is on hearing of Captain Browne's death on 25 April 1663 caused by a blow to the forehead by a stone in some altercation with one of his seaman, his servant.
William Badiley however on 1 November objected of fitting the main mast of the Dunkirk to Rosebush and suggests she be towed by the Harwich hoy instead.