Original sentence: But his eldest son Benedict Calvert, 4th Baron Baltimore (1679–1715), did not maintain this allegiance.Lord Baltimore, furious at his son's conversion, withdrew his annual allowance of £450 and ended his support for his grandchildren's education and maintenance
Edited sentence: But his eldest son Benedict Calvert, 4th Baron Baltimore (1679–1715), faltered.Lord Baltimore, furious at his son's apostacy, withdrew his annual allowance of £450 and ended his support for his grandchildren's education and maintenance