Isola Bella (lit. 'beautiful island') is one of the Borromean Islands of Lago Maggiore in north Italy. The island is situated in the Borromean Gulf 400 metres from the lakeside town of Stresa. Isola Bella is 320 metres long by 400 metres wide and is entirely occupied by the Palace and its Italianate garden.
The island achieved its highest level of social success during the period of Giberto V Borromeo (1751–1837) when guests included Edward Gibbon, Napoleon and his wife Joséphine de Beauharnais, and Caroline of Brunswick, the Princess of Wales. It is said that Caroline, having fallen in love with the place, did her best to convince the Borromeo family to sell her Isola Madre or the Castelli di Cannero islands; her request being turned down, she established herself on the banks of Lake Como at Cernobbio in the Villa d’Este.