This work handle the term of “hünkâr mahfil” which has a big part in art history’s terminology, and the construction that emerged under this term with its first samples and its development in Seljuk und Ottoman architecture. The mahfil has the meaning ‘meeting place’ and defines the special parts in harim of mosque. These architectural constructions were built as being surrounded with banister or higher than other places in mosque. As muezzin, hünkâr und women, there are three kinds of mahfil which were constructed for different functions. The places which are called as “Hünkâr-Sultan Mahfil”’ today, were named as “Maksura, beyt’ül Maksure”’ in Muslim- Arabic communities, where they came out for the first time. These had the names ‘Hünkâr Ma’bedhanesi, Hünkâr Mahfil, Mahfel-i Hazret-i Hüdavendigar or Mahfil-i Hümayun in Ottoman Empire, but in the terminology of today’s art history there are named as Sultan or Hünkâr. After Prophet Mohammed migrated to Medina, he was to have both his own home and a masjid built here which would named as “suffa” later. This masjid was formed by a kind of medresseh and worship place, whose walls made of adobe, and its roof was covered with date boughs. At first, a sign –a line or stone- was put here to show the direction of Mecca and a date log for pulpit orator. In place of these some new places were built in mosque functionally, but among these there wasn’t a mahfil. And it shows us that mahfil was not needed in the time of Prophet. According to many investigators the first maqsuras – Hünkâr mahfils were built essentiality to save the caliphs against the assassinations. There are so many opinions about the building’s time of maksure-Hünkâr mahfil, but it must have been built at the beginnings of the times of Emevi (661-750). As İbni Haldun pointed out, this part of mosque must have had a big importance for ruler that it began to be built on every part of Islamic region. The Hünkâr mahfils, which pervaded on the Islamic region in 11th and 12th centuries, were built in different forms in Anatolian before Ottomans. After the first sample in Divriği Kale Mosque (1180-81), so many Hünkâr mahfils were built in other constructions. The importance of the mahfil in these constructions can be comprehended by being built as an apart flat, by the care to mahfil and pulpit orator and in some constructions by a special door just for it. It possible to say that the custom began with Divriği Kale Mosque (1180-81) and continued with Konya Aleaddin Mosque (1220), Divriği Ulu Mosque (1228-29), Niğde Aleaddin Mosque (1223), Beyşehir Eşrefoğlu Mosque (1297-99), Niğde Sungur Bey Mosque (1335-36), Hasankeyf Ulu Mosque (it was built in the middle of 11th century and took its last form in 1394) and Aksaray Ulu Mosque (1408-1409). The Sultans in Ottoman Empire were praying on Friday and festal days and on special religious nights in one of the mosques within the city. Because of this, the Hünkâr mahfils were built in the mosques of Ottomans’ capitals as Bursa, Edirne and İstanbul. But in some mosques of the cities such as Amasya, Konya and Manisa, which were at the near of the capitals and were named as prince sanjak, were built Hünkâr mahfils too. The oldest Hünkâr mahfil in Ottoman architecture is present in the quest house within the Bursa Yıldırım Complex, which was to have built by Yıldırım Beyazıd in 1985-99. Except for this Hünkâr mahfil, that is controversial in respect of its position and dimensions, there is another conspicuous sample with its style and ornament in Bursa Yeşil Mosque that was built by Hacı İvaz Paşa upon request of Çelebi Sultan Mehmed in 1419-20. The Hünkâr mahfil envelops a huge area with its other further function places on north side of the mosque and it has an intense ceramic execute. These verify the importance to be given to mahfil. A huge change occurred about the form of hünkâr mahfils after Bursa Muradiye Mosque, which has plainer characteristics than Bursa Yeşil Mosque (1426). The oldest hünkâr mahfil in Ottoman architecture, which was in the form of being carried by the columns, is present in the Edirne Mosque of 2. Bayezid(1488). At the times of Seljuk and Beylik, the Hünkâr mahfils was made of wood. And until the late of Ottoman architecture, the material marble was used as well as wood. The hünkâr mahfil was built traditionally in all mosques in İstanbul, which were built upon requests of Sultans, after the Mosque of İstanbul 2. Bayezid. For the first time, mihrab was built in the Şehzade Mosque. After this mosque, mihrab was placed in many contractures, in which hünkâr mahfil was present, as İstanbul Süleymaniye Mosque (1557), Edirne Selimiye Mosque (1574-75), Sultan Ahmet (1617), Eminönü Yeni (1663) and Üsküdar Yeni Valide Mosque. Before the hünkâr mahfil in Sultan Ahmet Mosque (1609-17), there was no unique lathwork in the hünkâr mahfils of Ottoman mosques. The marble screen wall, which enveloped only one side of east face of hünkâr mahfil in Sultan Ahmet Mosque, was enlarged to envelop two faces of hünkâr mahfil in Eminönü Yeni Mosque (1663). After the building of a lathwork in Sultan Ahmed Mosque (1609-17), lathwork was put in the hünkâr mahfils which had no present or unique one. For the first time, the hünkâr pavilion was jointed to mosque in Sultan Ahmed Mosque (1609-17) and this execution was followed later in some mosques as Eminönü Yeni (1663), Üsküdar Aya