Ottomans rule in Aegina and the Morea was resumed and confirmed by the Treaty of Passarowitz, and they retained control of the island with the exception of a brief Russian occupation Orlov Revolt (early 1770s), until the beginning of the Greek War of Independence in 1821. Greek Revolution During the Greek War of Independence, Aegina became an administrative centre for the Greek revolutionary authorities. Ioannis Kapodistrias was briefly established here. Landmarks Temple of Aphaea, dedicated to its namesake, a goddess who was later associated with Athena; the temple was part of a pre-Christian, equilateral holy triangle of temples including the Athenian Parthenon and the temple of Poseidon at Sounion. Monastery of Agios Nectarios, dedicated to Nectarios of Aegina, a recent saint of the Greek Orthodox Church. A statue in the principal square commemorates Ioannis Kapodistrias (1776–1831), the first administrator of free modern Greece. The Orphanage of Kapodistrias is a large building, known locally as The Prison (Οι Φυλακές, Oi Filakes), constructed in 1828-29 by Ioannis Kapodistrias as a home for children orphaned as a result of the Greek War of Independence. The building also housed schools, vocational workshops, the National Public Library, the National Archaeological Museum, a military academy, the National Printing Office and the National Conservatory for Choir and Orchestra. From about 1880 it was used as a prison, and housed political prisoners during the Greek Junta (1967-1974) - hence its local name. There are currently plans to restore the building as a museum. The Tower of Markellos was probably built during the second Venetian occupation, 1687–1714, as a watch tower in anticipation of a Turkish siege. A castle, fortified walls and numerous watchtowers were built at this time. The tower was abandoned after the Turkish occupation of 1714, until revolutionary leader Spyros Markellos bought the tower as his residence in around 1802. In 1826-28 it was the headquarters of the temporary government of the embryonic Greek state. It subsequently was used as a police headquarters and housed various government agencies until it was abandoned again in the mid 19th century. It is currently owned by the Municipality of Aegina. Temple of Zeus Hellanios, near the village of Pachia Rachi, is a 13th-century Byzantine church, built on the ruins of the ancient temple to Zeus Hellanios, built in the 4th century BC. The staircase leading up to the church, some of the original walls, and loose stones from the