Tomb of Suleyman Shah

Tomb of Suleyman Shah Süleyman Şah Türbesi
View of the building complex of the Tomb of Suleyman Shah (its second location, 1973 – February 2015), seen from the Euphrates river.
Tomb of Suleyman Shah
Coordinates: 36°52′45″N 38°6′20″E / 36.87917°N 38.10556°E / 36.87917; 38.10556
Country	Syria (geographically located) and  Turkey (ownership)
Governorate	Aleppo Governorate
Elevation	475 m (1,558 ft)
Time zone	EET (UTC+2)

The Tomb of Suleyman Shah (Turkish: Süleyman Şah Türbesi) is, according to Ottoman tradition, the grave (tomb, mausoleum) housing the relics of Suleyman Shah (c. 1178–1236), grandfather of Osman I (d. 1323/4), the founder of the Ottoman Empire. This legendary tomb has since 1236 had three locations, all in present-day Syria. From 1236 until 1973, its first location was near castle Qal'at Ja'bar in present-day Raqqa Governorate, Syria.

Under the Treaty of Lausanne (1923), breaking up the Ottoman Empire into Turkey, Syria and other states, the tomb site at castle Qal'at Ja'bar remained the property of Turkey.

In 1973, when the area around castle Qal'at Ja'bar was due to be flooded under Lake Assad, the tomb by agreement between Turkey and Syria was moved 85 km northward but also on the Euphrates riverside and also in Syria, 27 km from the Turkish border.

In early 2015, during the Syrian Civil War, Turkey unilaterally moved the tomb again to a new site in Syria, about 180 meters from the Turkish border, 22 km (14 mi) west of Kobanî and just north of the Syrian village of Ashme, evacuating the approximately 40 Turkish soldiers guarding the tomb. The Turkish government has stated that the relocation is temporary, and that it does not constitute any change to the status of the tomb site.

Suleyman Shah (c. 1178–1236) was, according to some but not all Ottoman genealogies, the grandfather of Osman I (d. 1323/4), the founder of the Ottoman Empire. Suleyman Shah is believed to have drowned in the Euphrates river near castle Qal'at Ja'bar in present-day Raqqa Governorate, Syria, and was according to legend buried near that castle, in a tomb.