Complex sentence: On the exterior walls were various relief carvings--crosses, eagles, etc. Beside the south wall was a small chapel dedicated to St. Stephanos; in 1705 a bell tower was added to the roof of this chapel.
Split into simpler sentences: On the exterior walls were various relief carvings--crosses, eagles, etc. Beside the south wall was a second church: a small chapel dedicated to St. Stephanos. In 1705 a bell tower was added to the roof of this chapel.