The Reformed-Calvinist Church in Câmpia Turzii was built by a testamentary donation of the Calvinist prince of Transylvania Ferenc Rhédei and is documented in 1680 – this year we find it on a plaque inside the church and on the bell tower. At the time of its construction it was the church of Ghiriș Arieș locality, being documented in 1219, and it is currently the oldest preserved building in the Câmpia Turzii area.
The church is part of the fortified churches category of Transylvania built in the Baroque style. The defense wall has a circumference of 75 m and a thickness of 60 cm, is supported by buttresses and has holes for observation and retaliation in case of attack. Countess Serédi Sophia financially supported the construction of the entrance portal on which are carved the year 1702, the name and coat of arms of the countess. In 1786, the interior was restored and the vault was repaired with the help of Countess Rachel Kendeffy, whose name is inscribed on a marble plaque placed to the left of the pulpit. From its construction until now, it has remained the parish church of the local Reformed-Calvinist community.
