ARW Dhelan

In the mirror universe, the ARW Dhelan was a Romulan starship, a tier 5 warbird retrofit in Alliance $𝜇$ service in the early 25th century. In the 2400s decade, the vessel transitioned into the primary universe and began service in the Romulan Republican Force. 

History
In 2409, Dhelan-class warbirds were among the mirror universe starships recovered from the Tholian Assembly in the Azure Nebula. The Lobi Crystal Consortium offered a batch of three tier-5 cruiser classes to Allied commanding officers through a so-called Hirogen lock box. Besides the Dhelan, this also included the Klingon and the Terran Empire's four-nacelled heavy cruiser  progeny. 

A Romulan Republic officer commanding a mirror Dhelan also acquired the ARW Dhelan for deployment of admiralty-directed missions. (, admiralty system)