Complex sentence: It is administered by the municipality of Ithaca and is north of the island as well as south of the island of Lefkada, until the reorganization in the mid to late-20th century, it was part of the Lefkada prefecture.
Split into simpler sentences: It is administered by the municipality of Ithaca and is north of the island as well as south of the island of Lefkada. Until the reorganization in the mid to late-20th century, it was part of the Lefkada prefecture.