Yağıbasan Medresesi

Yağıbasan Medresesi is an educational structure built in the 12th century during the Danişmendids period. It was commissioned by Danişmendid emir Nizameddin Yağıbasan. The structure is represented by two distinct examples: one located in the center of Tokat within the boundaries of Tokat province, known as “Çukur Medrese,” and the other in Niksar.

Historical Context

The Yağıbasan Medreses belong to the period of the Danişmendid Beylik, which ruled northern and central Anatolia during the 11th and 12th centuries. The Danişmendids were among the Turkmen principalities that established political dominance in Anatolia after the Battle of Manzikert and were active in the regions of Tokat, Niksar, Sivas and Amasya. During this period, Niksar emerged as one of the beylik’s important centers.^【1】

During the Danişmendid era, educational structures were constructed in relation to urban centers and administrative areas. Madrasas functioned as institutions for religious and scientific education within the beylik’s governance framework. The Yağıbasan Medreses are among the early examples of the medrese institution taking root in Anatolia during this period.^【2】

Construction and Patronage

The Yağıbasan Medreses were commissioned by Nizameddin Yağıbasan, a ruler of the Danişmendid Beylik. The medreses are named after their patron. No original foundation inscription has survived to the present day. The medrese in Tokat is dated to 1151–1152, while the one in Niksar is dated to 1157–1158.^【3】

The Yağıbasan Medrese in Tokat is known today as “Çukur Medrese.” This name derives from the gradual rise in the surrounding street level over time. The structure is situated within the historic urban fabric.^【4】

The Niksar Yağıbasan Medrese was constructed within the inner citadel of Niksar Castle, adjacent to the fortification walls. Its location was determined in accordance with the existing settlement pattern within the castle.^【5】

The Tokat Yağıbasan Medrese is mentioned in 16th-century waqf records as “Vakf-ı Medrese-i Yağıbasan.” This record confirms that the structure operated within the waqf system.^【6】

Architectural Features

Plan Layout

The Tokat Yağıbasan Medrese is a single-story structure with a nearly square plan. The central courtyard is covered by a circular dome with a large opening at its center. The spaces surrounding the courtyard consist of iwan and vaulted volumes. Two iwans open into the courtyard from the south and west, but these do not align precisely with the main axes.^【7】

There is no perfect symmetry between the entrance axis and the dome axis. This asymmetry is also evident in the placement of the iwans and other spaces. On the southern wall of one of the iwans opening into the courtyard, there is a semi-circular mihrab niche constructed of brick. The floor level of the structure lies approximately 1.25 meters below the current street level.^【8】

The Niksar Yağıbasan Medrese also follows a closed courtyard plan. The courtyard is covered by a dome, and the surrounding spaces are arranged around it. Due to its location adjacent to the castle walls, the plan was constrained by limited space, and the rooms were shaped accordingly.

Construction Materials

In both Yağıbasan Medreses, the primary building material is rubble stone. The stone walls form the load-bearing system of the structure. Brick was preferred for the dome, squinches, and certain transitional elements. Cut stone was used for door openings and some arches.^【9】

The architectural decoration is minimal. The scarcity of ornamental elements reflects a functional approach to construction. The material use and architectural arrangement are consistent with the building techniques of the period.^【10】

Educational Function and Institutional Role

The Yağıbasan Medreses were among the institutions where religious and scientific education was conducted during the Danişmendid period. Islamic sciences were taught in the medreses, and subjects such as mathematics and astronomy were also included in the curriculum. Educational activities were carried out within a structured framework consistent with the medrese tradition of the time.^【11】

Lectures were delivered by mudarris, and students pursued their education within the medrese premises. These institutions also served as places of residence and provided for daily needs. In this regard, the Yağıbasan Medreses were integral to the educational institutions of the Danişmendid period.^【12】

The Yağıbasan Medreses operated during a period when the medrese institution was beginning to spread across Anatolia. These structures are significant in demonstrating that education within the Danişmendid Beylik was systematically conducted through formal institutions.

Urban Location

The Yağıbasan Medrese in Tokat is situated within the historic urban fabric. Over time, the rise in surrounding street and building levels has resulted in the structure now lying below current street level. This has affected the medrese’s spatial relationships within the city.

The Niksar Yağıbasan Medrese is located within the inner citadel of Niksar Castle, adjacent to the fortification walls. The medrese is directly related to the military and administrative structures within the castle. Its placement was determined with consideration of the castle boundaries and existing urban development.

Both medreses are situated in areas with a high concentration of historic buildings and have maintained their original locations throughout the urban development process.

Conservation Status

The Yağıbasan Medresesi has been registered by the Ministry of Culture and Tourism as a protected immovable cultural asset. The structure is currently under public ownership and preserved under the status of cultural heritage.

Renovation works have been carried out on the Tokat Yağıbasan Medrese during various periods. These interventions were undertaken to preserve the current condition of the structure and maintain its physical integrity. The medrese is among the historic buildings open to visitors and is evaluated as part of the cultural heritage.

The Niksar Yağıbasan Medrese also holds the status of a registered cultural asset. Due to its location within the castle, it has been partially protected from environmental influences, but maintenance and restoration needs have arisen over time. Interventions carried out on the medrese have been aimed at ensuring its structural survival.

Both medreses are currently used for purposes other than their original function, yet they continue to exist as part of the cultural heritage, preserved under their historic identity.