The Borromean Islands

Are a group of three small islands and two islets in the Italian part of Lago Maggiore, located in the western arm of the lake, between Verbania to the north and Stresa to the south. Together totalling just 50 acres in area, they are a major local tourist attraction for their picturesque setting.

Their name derives from the Borromeo family, which started acquiring them in the early 16th century (Isola Madre) and still owns the majority of them (Isola Madre, Bella, San Giovanni) today. Wikipedia