Hammer-Purgstall identified the author as Solakzade Mehmed (d. 1657/8), a historian who also wrote poems with the pen-name of Hemdemî, on the grounds that some poems following the Vienna ms. are signed by Hemdemî (V39a, of similar content and obviously by the same hand). Little is known of Solakzade: he was an early recruit to the palace and was a “constant companion” to Murad IV, together with Evliya Çelebi; it seems that he remained in the palace under the next two Sultans. He was a musician and composer of note, but his main work is the history of the Ottoman dynasty up to 1643, mainly a compilation of older chronicles.
Both Flügel and Sohrweide are cautious and question this attribution; R. Murphey (“Solakzade’s Treatise of 1652: A Glimpse at Operational Principles Guiding the Ottoman State During Times of Crisis”, Beşinci Milletlerarası Türkiye Sosyal ve İktisat Tarihi Kongresi Tebliğleri, vol. 1, Ankara 1990, 27-32; repr. in R. Murphey, Essays on Ottoman Historians and Historiography, Istanbul 2009, 43-48.thinks it plausible (the completion of the work corresponds with the final compilation of Solakzade’s historical work and it could be a “spin-off product of a period of intensely concentrated work”) but “far from being definitely established”. Neither C. Woodhead (EI 2nd ed.) nor A. Özcan (TDVİA) refer to the Nasihatname in their biographical entries on Solakzade. Overall, the work seems to lack the concrete historical references one would expect from a historian (apart from the usual locating of the beginning of decline in the year 1000 H., and some moralistic rather than historical anecdotes on Mehmed II, Selim I and Suleyman I). On the other hand, a recurring theme of the work, the simile of the development of dynasties/states to the decline of the human body, might imply distant influences from Kâtib Çelebi.