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
Flag of the United States of the Ionian Islands the Ionian Islands' national flag would be the flag of the Septinsular Republic, a Lion of Saint Mark holding a Bible on a blue background, with a Union Jack in the upper corner closest to the flagstaff to symbolise the British protectorate. During shipping in the Black Sea and the Eastern Mediterranean, the flag of the United States of the Ionian Islands would often be used as a flag of convenience by Greek ships to purport that they enjoyed the protection of the British Empire. The British ambassador to the Ottoman Empire, Percy Smythe, 6th Viscount Strangford, was annoyed by