Kınalıada

Kınalıada (Turkish for: Henna Island; Greek: Πρώτη, romanized: Proti, lit. 'first', known classically in English as Prote) is the fourth largest inhabited island in the Princes' Islands in the Sea of Marmara; near Istanbul, Turkey. It is also the closest of the islands to the mainland, lying about 12 kilometres (7 mi) to the south. Administratively, it is a neighbourhood in the municipality and district of Adalar, Istanbul Province, Turkey. Its population is 2,025 (2022). In the past it was called Proti by its Greek residents.

Kınalıada means "Henna Island" in Turkish, because the land has a reddish colour as a result of the iron and copper that has been mined there. It is dominated by Çınar Tepesi (Plane Tree Hill, 115 m/377 ft), Teşrifiye Tepesi (Visiting Hill, 110 m/360 ft) and Manastır Tepesi (Monastery Hill, 93 m/305 ft). This is one of the least forested of the Prince Islands.

Proti (Greek: First) was the island most commonly used as a place of exile under the Byzantine Empire. The most notable exile was Emperor Romanos IV Diogenes, who remained in the Monastery of the Transfiguration on Hristo Peak of the island after the Battle of Manzikert in 1071. The island was also the burial place of the deposed Emperor Tiberius III.

The island is home to one former Greek Orthodox monastery, the Monastery of Christ.