Complex sentence: Amid the effort to equip it properly, however, the church was struck by another calamity: on June 2,1875, the building was struck by lightning, killing the priest Valentin Plemlj and starting a fire which destroyed the belltower and roof.
Split into simpler sentences: Amid the effort to equip it properly, the church was struck another calamity. On June 2,1875, the building was struck by lightning, killing the priest Valentin Plemlj and starting a fire which destroyed the belltower and roof.