Writer and composer (b. 1855, Tırnova / Bulgaria – d. 29 January 1946, İstanbul). After finishing Tırnova High School, he continued at Madrasah Muslim School and learned accounting in the Islamic Science Accounting Office. He improved his accounting knowledge in his years as a clerk that he started at an early age and took music lessons from Cudi Efendi and his student Meytabzâde. On the loss of Tırnova he came to İstanbul and entered the Ministry of Finance as a collection clerk (1876). Later on he transferred to the Exchequer and Audit Department in 1883. After becoming a member of the Council of State (1889), he retired (1909). At the language school he attended (1883-1886) while working at the Exchequer and Audit Department, he learned French and English, and from the experts of the time he took classical music and instrument lessons.
He improved his musical composition work and wrote about 2000 compositions. Some of his military marches that he composed in the year 1924 were rewarded by the President of the Republic. After his retirement, he researched the views of the Orientalists and the thoughts of materialist philosophers and in opposition to these, he wrote refutes defending Islam. He was interested in Sufism and he defended the idea of monotheism. It is said that he was loyal to the responsible of Fatih Lodge Şeyh Ahmed Efendi. He donated his property and the income of his books to the School for Orphans, and his library of 9050 books to the Beyazıt Library. İsmail Fenni Efendi, who never married, is buried in Eyüp Graveyard.
Lugatçe-i Felsefe (The Little Dic–tionary of Philosophy, 1927), Maddiyûn Mezhebinin İzmihlâli (Extinction of the Materialist Community, refute to Bühner’s work named Madde ve Kuvvet - Matter and Power, 1928), Kitâb-ı İzâle-i Şukûk (Book of the Removal of Cracks, refute to Dozy’s work named Tarih-i İslâmiye - History of Islam, 1928), Vahdet-i Vücud ve Muhyiddin-i Arabi (Being Unique and Muhyiddin-i Arabi, 1928, new edition 1991), Küçük Kitapta Büyük Mevzular (Big Matters in a Little Book, 1934), Hakikat Nurları (Light of Truth, refute to H. Hirshfeld and Clair Tisdull’s works about the Koran, published after his death by O. Ergin-A. K. Aksüt, historians, 1949).
He also prepared about 15 more translation and compilation works that were not published.
REFERNCE: İbrahim Alaeddin Gövsa / Türk Meşhurları (1946), Rehber Ansiklopedisi, Hakkı Tarık Us / Elli Yıl Mecmuası (tsz. s. 62-63), Büyük Larousse (1986), İbnülemin Mahmud Kemal İnal / Son Asır Türk Şairleri (c. I, 1999), Süleyman Hayri Bolay / TDV İslâm Ansiklopedisi (c. 23, 2001), İhsan Işık / Resimli ve Metin Örnekli Türkiye Edebiyatçılar ve Kültür Adamları Ansiklopedisi (2006, gen. 2. bas. 2007) - Ünlü Fikir ve Kültür Adamları (Türkiye Ünlüleri Ansiklopedisi, C. 3, 2013) - Encyclopedia of Turkey’s Famous People (2013).