Thomasina Tobin and her husband Patrick were renting the property in Cullera, on the Valencian coast

Thomasina Tobin, 51, and her husband Patrick, 48, who lived in London, suffered cardiac arrests before being found dead by their children inside a jacuzzi in Spain

Spanish police believe Thomasina Tobin passed away when attempting to save her husband after he became stuck underwater at a spa in a luxury villa in Spain.