This squadron was spotted Know in the early hours of 13 November by the patrolling Patrolling British frigates HMS `` Diana '' and HMS `` Niobe '' , which gave Giving chase Self_motion .

To blockade Besieging these squadrons , the Royal Navy 's Channel Fleet had assigned Request the ships of the line HMS `` Donegal '' under Captain Pulteney Malcolm and HMS `` Revenge '' under Captain Charles Paget to patrol Patrolling the entrance to Cherbourg , while frigates HMS `` Diana '' under Captain Charles Grant and HMS `` Niobe '' under Captain John Wentworth Loring kept watch Scrutiny on Le Havre .