It's believed the woman was from South Dublin.
An Irishman is due before a Spanish court later following the violent death of his partner.
It's reported the 30- year- old man has links to the Kinahan Cartel.
The 36-year-old woman was found dead in her hotel in Salou on Sunday night.
It's believed she was a mother of two and from South Dublin.
Gardaí have travelled to Spain to help with the investigation and the repatriation of the victim's remains.