Prof. Jane Hathaway has a new book to be released soon. "The Chief Eunuch of the Ottoman Harem: From African Slave to Power-Broker" will be published by Cambridge University Press.
From the Cambridge University Press web site: Eunuchs were a common feature of pre- and early modern societies that are now poorly understood. Here, Jane Hathaway offers an in-depth study of the chief of the African eunuchs who guarded the harem of the Ottoman Empire. A wide range of primary sources are used to analyze the Chief Eunuch's origins in East Africa and his political, economic, and religious role from the inception of his office in the late sixteenth century through the dismantling of the palace harem in the early twentieth century. Hathaway highlights the origins of the institution and how the role of eunuchs developed in East Africa, as well as exploring the Chief Eunuch's connections to Egypt and Medina. By tracing the evolution of the office, we see how the Chief Eunuch's functions changed in response to transformations in Ottoman society, from the generalized crisis of the seventeenth century to the westernizing reforms of the nineteenth century.
More information about the book is available here.
Related to Prof. Hathaway's upcoming book, she recently was a guest on the Ottoman History Podcast. In Episode 369, "The Sultan's Eunuch" she describes the office of Chief Harem Eunuch, from its creation to its demise. The podcast is available here.