Yıldırım Bayezid Mosque, Mudurnu

Overview

In the middle of Mudurnu, a square stone hall carries one great dome. From Bolu, our Mudurnu and Göynük day trip covers both towns. It looks simple from outside, yet it marks a turning point in Ottoman building. This is the Yıldırım Bayezid Mosque, built by a prince who later became Sultan Bayezid I.

The Story of the Yıldırım Bayezid Mosque

Bayezid, later nicknamed Yıldırım, “the Thunderbolt”, built the mosque while he was still a prince. It dates from 1382. Later, he also built a mosque and a bath in Bolu itself.

What to See at the Yıldırım Bayezid Mosque

First, pass through the three-bay entrance portico. Inside, a single dome of 19.43 m (64 ft) covers the almost square prayer hall. It has one of the first large Ottoman domes, and it is an early example of a mosque supported by eight buttresses.

The Bath and the Lost Madrasa

The mosque was once part of a small complex with a madrasa and a double bath. Bayezid built the bath and the madrasa while he was still a prince. However, the madrasa came down in 1953, so today the bath is the other survivor. Its men’s section has a dome of about 20 m (66 feet), with muqarnas, the honeycomb vaulting of Islamic architecture. Also, the mosque itself carries no inscription. Its date of 1382 comes from the bath’s inscription and the waqf deed, which give the Hijri year 784.

Mudurnu, a Guild Town

Mudurnu grew as a town of craft guilds, and in 2015 it joined Türkiye’s UNESCO World Heritage Tentative List as the Historic Guild Town of Mudurnu. So the old customs still show. Every Friday after the call to prayer, the shopkeepers say the Esnaf Duası, the tradesmen’s prayer, in Orta Çarşı (a market street or bazaar) and Demirciler Çarşısı, the blacksmiths’ bazaar. Then, for something sweet, look for Mudurnu kaşık sapı, a registered local specialty since 2021.

Also, Mudurnu lies 52 km (32 miles) from Bolu on the historic Silk Road route, and it was an early Ottoman center of the Ahi brotherhoods of craftsmen. So, if you are lucky, you may see the Şed Kuşatma, the ceremony in which a master ties a sash on an apprentice.

How to Visit the Yıldırım Bayezid Mosque

The mosque stands in the center of Mudurnu. It is a working mosque, so dress modestly and avoid prayer times.

Would you like to see Bolu with a local guide? The mosque of a prince is the first stop of our Mudurnu and Göynük day trip, before the bazaar; our Bolu guide has the whole province.