Complex sentence: During the thirteenth and fourteenth centuries, with its activities underwritten by episcopal and papal indulgences, the hospital's role as a centre for alms collection persisted, but its linkage to the Order of Bethlehem increasingly unravelled, putting its purpose and patronage in doubt.
Split into simpler sentences: During the thirteenth and fourteenth centuries, with its activities underwritten by episcopal and papal indulgences, Bethlem's role as a centre for alms collection persisted. Yet, over time, its linkage to the Order of Bethlehem increasingly unravelled, putting its purpose and patronage in doubt.