This is from the third quarter of the 14th century, the carving is great.

This cenotaph sarcophagus dates from the Beylik (= Turcoman principality) of Kutluşahlar, who had their capital in Amasya and were independent from 1340 to 1381. The dynasty was named after their first leader Kutlu Şah.
The style of the woodcarving can be characterised as ‘late-Seljuk’.

A cenotaph is an "empty tomb" or a monument erected in honour of a person or group of people whose remains are elsewhere. It can also be the initial tomb for a person who has since been interred elsewhere. The word derives from the Greek: κενοτάφιον = kenotaphion (kenos, one meaning being "empty", and taphos, "tomb"). In general, a Turkish türbe has two rooms: an upper room where the cenotaph sarcophagus/sarcophagi were placed to be visited by relatives and followers, and a room beneath where the remains of the deseased were buried.

Correspondent: J.M.Criel, Antwerpen.
Source: Website of Huzura Doğru.TV – Wikipedia
& ‘Türkiye Tarihi Yerler Kılavuzu’ – M.Orhan Bayrak, Inkılâp Kitabevi, Istanbul, 1994 .