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|Comune||Tuoro sul Trasimeno|
|Elevation||309 m (1,014 ft)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
Isola Maggiore is the second largest island (at approximately 10-acres) on Lake Trasimeno, in Umbria, central Italy. It is a frazione of the comune of Tuoro sul Trasimeno, and is the only inhabited island on the lake, with a current population of 35.
St Francis of Assisi lived on the island as a hermit from 1211. The 12th century Church of Saint Michael the Archangel was built on the top of the hill.
The island's only town reached its height in the 14th century, after the establishment of a Franciscan Monastery is 1328. Most of the towns buildings date from this period.
By the 1800s the town had a population of 700 and was in decline.
The Guglielmi castle was built on the monastery in the 1880s, which has since fallen into disrepair. The castle is in the process of being turned into a luxury resort and spa, although as of January 2010 for sale.
Today the town is dependent on fishing, agriculture, tourism and traditional Irish lace making which was introduced in the 1900s. Some of the olive trees on the island are hundreds of years old. From the end of February 1944 until 18 June 1944 the castle was used as an internment camp for Jews and political prisoners, sent there for their own safety by the Fascist Prefect of Perugia Armando Rocchi, who was under German instructions to send them instead to a concentration camp at Fosssoli, Carpi di Modena. After the Fascist authorities left Perugia and the British arrived at Sant'Arcangelo on 19 June they were eventually rowed to safety by the island's fishermen, to whom a monument has been erected in the open space next to the Lace Museum. The rescue was organised by the island's priest, don Ottavio Posta.
Visitors can explore the old town and hill; paths cross the island through the olive groves. 
- Gli Ebrei di Isola Maggiore, Janet Kinrade Dethick, 2011