Complex sentence: The design of the Etchmiadzin Cathedral, termed by French art historian Jean-Michel Thierry as "a four-apsed square with ciborium", was not popular in Armenia-the early 7th century Cathedral of Bagaran being the only known church with a similar plan.
Split into simpler sentences: The design of the Etchmiadzin Cathedral, termed by French art historian Jean-Michel Thierry as "a four-apsed square with ciborium", was not popular in Armenia. The early 7th century Cathedral of Bagaran being the only known other church with a similar plan.