Evliya Çelebi describes this tomb: Sultan Bayezid-i Veli [Bayezid II] was the son Sultan Mehmed the Conqueror who died in 918  at the town of Havsa in Edirne[. H]e is buried in Istanbul in front of the mihrab wall of his mosque within a paradise garden. The tomb (türbe) is in a garden on the grounds of the Bayezid Mosque, constructed between 1501 and 1506.
Source: Travel Account, 17th century
-Nurhan Atasoy, Seyit Ali Kahraman
Evliya Çelebi Seyahatnâmesi: Topkapı Sarayı Bağdat 304 Yazmasının transkripsiyonu (Open in Zotero)
Originally published at: Source: Atasoy, Nurhan, and Seyit Ali Kahraman “Mausoleum of Bayezid-i Veli” Middle East Gardens Traditions. Dumbarton Oaks, December 1, 2014. https://www.doaks.org/resources/middle-east-garden-traditions/catalogue/C98. Archived at: https://perma.cc/5UDZ-R9BM.