The article deals with Mary’s Church at Sava, and a demolished Barbara’s Church at Plavž at Jesenice which were founded and built at the beginning of the 17th century by the Bucelleni family, the forge-owners of that place, and consecrated by the bishop of Ljubljana Tomaž Hren (the third church — The Holy Cross at Planina above Jesenice — was, inspite of the intention of the Bucellenis to arise one already at the beginning of the century, erected only in the eighties). The article tries, by means of the annals and considering the facts about architectural higtory of the church at Sava, found on the recent occasion of its restoration, to reconstitute the original form of the two buildings, to find their stylistic characteristics, and to specify their role in the development of our ecclesiastic architecture of that time. At the same time, the article tries to answer the question whether it was only owing to the Bucelleni family that these churches were built or whether they were built on the initiative of Tomaž Hren.