United States of the Ionian Islands took Lefkada in 1810. The island of Corfu remained occupied by the French until 1814. The Congress of Vienna agreed to place the Ionian Islands under the exclusive "amical protection" of the United Kingdom. Despite British military administration, the Austrian Empire was guaranteed commercial status equal to the UK. The arrangement was formalised with the ratification of the "Maitland constitution" on 26 August 1817, which created a federation of the seven islands, with Lieutenant-General Sir Thomas Maitland its first "Lord High Commissioner of the Ionian Islands". The Party of Radicals (Greek: Κόμμα των Ριζοσπαστών) founded in 1848 was against the
Venetian rule in the Ionian Islands of the Republic is deeply rooted in the population, who recall it with a shade of nostalgia even after so much time and so many events. Because of the long Venetian period, the manners and traditions of the inhabitants of the Ionian Islands are a mixture of Greek and Italian. The Venetian influence is illustrated in all aspects of culture and everyday life. In 1800 the Septinsular Republic was established; its flag design was based on the flag of the Republic of Venice. In addition, Italian was the co-official language of both the Septinsular Republic and the United States of