 The Calvert household suffered the intrusion of the <unk> @-@ era religious laws . From the year of George 's birth onwards , his father , Leonard Calvert was subjected to repeated harassment by the Yorkshire authorities , who in 1580 extracted a promise of conformity from him , compelling his attendance at the Church of England services . In 1592 , when George was twelve , the authorities denounced one of his tutors for teaching " from a <unk> <unk> " and instructed Leonard and Grace to send George and his brother Christopher to a Protestant tutor , and , if necessary , to present the children before the commission " once a month to see how they perfect in learning " . As a result , the boys were sent to a Protestant tutor called Mr. <unk> at <unk> . The senior Calvert had to give a " bond of conformity " ; he was banned from employing any Catholic servants and forced to purchase an English Bible , which was to " ly open in his house for everyone to read " . 
