Complex sentence: The patronage of kings, dukes, magnates, clergymen, and patricians allowed various artists to create masterpieces and the Gothic buildings were decorated with stone and wood sculptures, paintings, stained glass windows, gold articles, and textiles.
Split into simpler sentences: The patronage of kings, dukes, magnates, clergymen, and patricians allowed various artists to create masterpieces. The Gothic buildings were decorated with stone and wood sculptures, paintings, stained glass windows, gold articles, and textiles.