Qualla: Sedef Island

Sedef Island: Introduction

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit User:The Emirr, CC BY 3.0. Its Turkish name means Mother-of-Pearl Island — Sedef Adası — though the Greeks who named it first called it Terebinthos, for the turpentine trees that once covered its slopes. Both names are acts of translation: of an island small enough to walk across in an afternoon, tucked just east of Büyükada, at the far end of the Princes' Islands chain. Sedef is one of the few inhabited islands of the archipelago that remains mostly private property, and the care that has shaped it shows in the pine forests and the quiet.

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Image: User:The Emirr | CC BY 3.0

Sedef Island: The Patriarch Who Was Imprisoned Here

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit Unknown, 13th-century author, Public domain. In 857 AD, Patriarch Ignatios of Constantinople was sent into exile on this island — then barely a dot in the Marmara, its slopes fragrant with terebinth. He remained imprisoned on Sedef for ten years. The circumstances were political: Ignatios had been deposed as Patriarch in a ...

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Image: Unknown, 13th-century author | Public domain

Sedef Island: A Name Written in Resin

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit Zamir Sağlıkoğlu, CC BY-SA 4.0. The Greek name Terebinthos refers to the terebinth tree — Pistacia terebinthus — once common across the Mediterranean and valued for the turpentine resin it produces. The presence of the word in the island's ancient name suggests these trees once covered Sedef's slopes in suffici...

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Image: Zamir Sağlıkoğlu | CC BY-SA 4.0

Sedef Island: A Strict Code and a Protected Character

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit Robin.r, CC0. At 0.157 square kilometers, Sedef is one of the smallest islands in the archipelago, barely a tenth the size of Büyükada. Most of it is privately owned. What makes Sedef unusual is not just its size but the building code that governs it: houses may not exceed two floors. This rul...

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Image: Robin.r | CC0

Sedef Island: On the Edge of the Archipelago

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit Maurice Flesier, CC BY-SA 4.0. Sedef sits east of Büyükada, the last significant landmass before the Sea of Marmara opens toward the Asian shore. Wikivoyage notes that Sedef and Yassıada are mostly private property with limited public access, distinguishing them from the four major islands that ferry services ...

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Image: Maurice Flesier | CC BY-SA 4.0