Marlborough was the first naval ship on the scene to assist the stricken USS Cole after she was attacked in Aden, Yemen in October 2000.

Marlborough, under the command of Captain Anthony Rix, was on passage to the UK after a six-month deployment in the Gulf and had a full medical detachment on board.

On 27 October 2001, the ship's Lynx helicopter crashed into the Arabian Sea after an Omani warship collided with the aircraft as it was hovering above the water.

The Lynx was dropping a dummy torpedo into the sea when an Omani vessel sailed into it from behind, catching the helicopter's rotor blades on its rigging.

The vessel was the last of three former Royal Navy Type 23 frigates to be handed over to Chile, under a £134 million sales agreement arranged by the Ministry of Defence's Disposal Services Authority and signed in September 2005.

Along with other Chilean vessels of her class, Almirante Condell underwent a significant upgrade from September 2020 to October 2021.