The House of the Roman Catholic Parish or the Schleunig House, located in Unirii Square at no. 15-16, is one of the oldest buildings in the city, being the result of merging three houses, the oldest being built in the middle of the 15th century.
The building was built by Gregorius Schleunig, who was pastor of St. Michael’s Church in the late 15th century, whose coat of arms – the lion tied to a bastion of the fortress – can be seen above the old gate of the house.
During the Religious Reformation, the founder of the Unitarian confession, David Francisc, lived here. Also, the building housed The Unitarian College, the oldest educational institution in Transylvania.
Among the distinguished guests of this parish was the Habsburg Emperor Joseph II.