original question: Which group does [Isola Madre] belong to?
answer: borromean islands
answer type: Island Group.
auxiliary information: Isola Madre, at 220 m wide and 330 m long, is the largest island of the Isole Borromee archipelago which falls within the Italian part of the Alpine Lake Maggiore, in the Province of Verbano Cusio Ossola, Piedmont. The island is occupied by a number of buildings and architectural structures and is especially well known for its gardens. In the past it was known as Isola di San Vittore and later as Isola Maggiore.
What group of islands is [Isola Madre] a member of?