Complex sentence: The fire which destroyed St. Elizabeth church in 1380 was the good opportunity for the construction of a new church.The rich citizens financed the construction of a cathedral with an active support of monarch Sigismund Lucemburgh.
Split into simpler sentences: The fire which destroyed St. Elisabeth church in 1380 was a good opportunity for the construction of a new church. Rich local citizens financed the construction of a cathedral with the active support of monarch Sigismund Lucemburgh.