Complex sentence: When the abbey was sold, the roof went to Cilcain church and the amazing Jesse window went to the church at Llanrhaeadr-yng-Nghinmeirch.
Split into simpler sentences: When the abbey was sold, the part of the roof went to Cilcain church. The amazing Jesse window went to the church at Llanrhaeadr-yng-Nghinmeirch.