| Ertuğrul Tekke Mosque | |
|---|---|
Ertuğrul Tekke Mosque in 2010 | |
| Religion | |
| Affiliation | Islam |
| Location | |
| Location | Istanbul,Turkey |
![]() Interactive map of Ertuğrul Tekke Mosque | |
| Coordinates | 41°02′44″N29°00′30″E / 41.04556°N 29.00833°E /41.04556; 29.00833 |
| Architecture | |
| Type | Mosque |
| Style | Ottoman architecture |
| Completed | 1887 |
| Minaret | 1 |
TheErtuğrul Tekke Mosque (Turkish:Ertuğrul Tekke Camii) is anOttoman imperial mosque located inYıldız neighbourhood, Serencebey rise ofBeşiktaş district inIstanbul,Turkey. A lateOttoman period mosque, it is constructed as akülliye consisting of anOttoman takya (tekye ortekke in Turkish),guest house,türbe,fountain, andlibrary in addition to the mosque.[1]
The construction of the mosque and the külliye complex was commissioned byOttoman sultanAbdul Hamid II, and finished in 1887. The original architect is not known.[2] It is dedicated to the founder of the Medeni branch ofShadhili (Turkish:Şaziliye)tariqa, a LibyanSufi,Sheikh Hamza Zafir. The mosque is named afterErtuğrul Gazi, the father of the founder of theOttoman Empire,Osman I, as a commendation to him. The name also comes from theErtuğrul Regiment, a royal palace guard regiment which comprised Turks from theDomaniç region. Initially the complex only consisted of the mosque, tekke, and the guesthouse. After the death of Sheikh Hamza Zafir in 1903, histürbe was constructed next to the mosque by the Italian architectRaimondo D'Aronco between 1905 and 1906.[1][3] The library and the fountain were also added in this expansion. After the passing of Sheikh Hamza Zafir, his two brothers Muhammed Zafir Efendi and Beşir Zafir Efendi became the sheikhs of the tekke. They are also buried in the türbe next to their elder brother.
The complex is mainly built as a guesthouse to various sheikhs andIslamic scholars that used to visit Istanbul from theIslamic world in an effort to strengthen the power of the position of theCaliphate in the Islamic world.[4]

After the abolition of tekkes in 1925, the mosque and tekke were closed and the two guesthouse buildings were used as a primary school, Şair Nedim Primary School. Due to extensive wear over the years, all the buildings were closed in 1960. The mosque was restored between 1969 and 1973 by the General Directorate for Foundations of the Republic of Turkey and was opened to the public in 1973. Recently, all the buildings except the guesthouses have undergone another restoration process. The restoration started in 2008 and lasted for two years. The mosque and türbe opened to the public on 21 May 2010 by PresidentAbdullah Gül.[5] As of 2010[update], both guesthouses are currently in a ruined state and not in use.
The mosque and the guesthouses are wooden constructions and represents the classical architecture of the late Ottoman period. The türbe, library, and the fountain are built in theArt Nouveau style.