The Saint-Bonaventure church's history is intimately related to the convent of the Cordeliers whose it was a part. It was built originally in the 13th century. The current church was built in just two years between 1325 and 1327. It housed the remains of Jacques de Grolée, died on 4 May 1327, which is under the high altar, before being moved somewhere near the epistle in 1599. The church was consecrated on 18 September 1328 by the archbishop of Lyon, Pierre IV of Savoy, under the name of St. Francis of Assisi. The church was expanded from 1471 to 1484 and was then named Saint-Bonaventure.
The choir was restored in 1607. It served as a granary grain after the French Revolution before being used to worship in 1806 to getting its current facade under the Cardinal Joseph Fesch's leadership.
Around 1890, the church was cleared of the curia and buildings bordering it on its side, which allowed the expansion of the rue Grolée on its western flank.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.