Pope Leo was threatening to stop the use of indulgences. These guilds and the church received large sums of money from the people of the town and fen lands who wished to pay for the safety of their souls in heaven. Cromwell duly arrived at the Guildhall in Boston pictured below.
With money from the Guilds, Cromwell embarked on his task hoping to gain Papal Bull of Indulgence for the town. Diarmaid MacCulloch, a professor of the history of the church at the University of Oxford, states that he managed to set up a meeting with the Pope during a stag hunt, during which and knowing of his eminences sweet tooth he managed to persuade him to change is mind by prying him with sweets and delicacies.
Cromwell's plan worked and the indulgences were reinstated.
MacColluch calls Cromwell Henry VIII's enforcer and he also claims it was while he was here in Lincolnshire that he was introduced to Protestantism.