Richard Flecknoe attended St Omer English Jesuit School, founded in 1593 by Father Robert Parsons SJ, and continued his studies at Watten in the Netherlands.
He attended St Omer English Jesuit School from 1619 to 1624, where he may have taken part in the annual drama productions: in 1623 the play was Guy of Warwick. Founded in 1593 by Father Robert Parsons SJ as the College of Saint-Omer in Artois, France (then part of the Spanish Netherlands), the school was forced in the 18th c. to relocate twice due to the suppression of the Jesuit order, first to Bruges in 1762 and then Liege in 1773, before migrating a third and final time to Stonyhurst in England where it became Stonyhurst College in 1794. After ordination as a secular priest, he continued his studies at Watten in the Netherlands until 1636, when he returned to England, but he was disappointed to find little acceptance among English Catholics, who were not favourably disposed towards Jesuits: "he is none of ours" said the outspoken Catholic priest Anthony Champney. 
