This turbe stands next to the dergah on the southern facade of the mausoleum. Built for Hasan Pasha, a Karaman chieftain who died in 1573, it contains no traces of a cataphalque. A door in the northern wall leads from the tomb into the green dome.
Above text and pictures are from the book titled "Mevlana and the Mevlana Museum".
You can purchase "Mevlana and the Mevlana Museum" book and other Turkey related books from Explore Turkey Bookstore.