HMS Zinnia was an Azalea-class minesweeping sloop of the Royal Navy, built in 1915 at the Swan Hunter & Wigham Richardson yard, at Wallsend in the United Kingdom.It was sold to Belgium on 19 April 1920 to join their new Corps of Destroyers and Sailors.

[1][a] They were designed at the start of the First World War as relatively fast minesweepers that could also carry out various miscellaneous duties in support of the fleet such as acting as dispatch vessels or carrying out towing operations, but as the war continued and the threat from German submarines grew, became increasingly involved in anti-submarine duties.

[13] On 23 October 1916, the sloop Genista was torpedoed and sunk by the submarine U-57 120 nmi (140 mi; 220 km) west of Cape Clear Island.

Zinnia and Camellia were ordered out from Queenstown to pick up her survivors, but at first failed to find them, and were joined by the cruiser Adventure.

The next day, U-62 stopped the Danish barque Jörgen Olsen, and attempted to sink the sailing vessel with gunfire.

Part of Pargust's crew abandoned ship as a "panic party", in order to tempt the submarine to surface, which UC-29 did after thirty minutes.

[26] The ship was recaptured in October 1945 by the British, and was returned to Belgium at the port of Ostend by a crew of the Royal Navy Belgian Section.

[citation needed] In 1946, when the Belgian Navy was reformed, the ship was renamed Breydel and resumed its activity as a fishery protection vessel in 1947.