Richard Russell (1630–93), priest, courtier, and diplomat, has largely been overlooked in English Catholic historiography. A student and later patron of the English College at Lisbon, Russell saw the college thrive. Russell began life as a servant to the college’s fifth president, Edward Pickford (1642–48). He went on to become an attaché to the Portuguese diplomatic corps, and served as a courtier to Queen Catherine of Braganza, before becoming bishop of Portalegre (1671–85) and later bishop of Viseu (1685–93). This article is based on the Letters and Papers of Richard Russell, kept at Ushaw College, Durham. The records reveal a man of considerable ability, patience, resilience and astuteness. As a young man he skilfully aided the Portuguese delegation’s deliberations at Whitehall, culminating in the Anglo-Portuguese marriage alliance of 1661. As courtier to the young Portuguese queen, he managed English Catholic affairs in London and on the Continent, providing protection to colleagues and benefices to his fellow priests from the English College at Lisbon.