This failed due to numerous reasons: there was no support from the powerful foreign leaders. The Duke of Alva believed that Spain should only invade after Elizabeth was overthrown. Also Walsingham's spy network had been investigating it while Ridolfi was away and questioned one of Norfolk's servants- he cracked and told them all about it. Norfolk was arrested and investigated, a coded document with all possible supporters was found. Since the plot was found in its early stages, there was never much English support. Ridolfi was still out of the country, after finding out about it, he went to work for the Pope in Rome and later went to Florence. He was never caught. In 1572, Norfolk was tried and found guilty for treason- he was executed. Following Norfolk's execution, there was a massacre in Paris which was known as the Bartholomew's day massacre; this prompted Elizabeth to strengthen relations with France.