A few Catholic saints are St. Thomas More, St. Robert Bellarmine and St. Francis of Assisi. St. Thomas More is the patron saint of attorneys, St. Robert Bellarmine is the patron saint of catechists, and St. Francis of Assisi is the patron saint of animals and ecology.
St. Thomas More was a layman, lawyer and scholar in England during the reign of King Henry VIII. More was a close confident of the king, and Henry made More Lord Chancellor in 1529. King Henry VIII later sought an annulment from his wife, Catherine of Aragon, and upon the Vatican's denial of the annulment the king separated from the Catholic Church and declared himself head of the new Church of England. St. Thomas More's conscience opposed both moves, and the saint eventually lost his life for abiding by his conscience in opposition to the king. Because of his integrity in his profession and his faithfulness to the Church, St. Thomas More became the patron saint of attorneys.
St. Robert Bellarmine is both a representative and the patron saint of catechesis, in part because of his work of systemizing, disseminating and defending Catholic doctrine following the Protestant Reformation.
St. Francis of Assisi was a Medieval friar whose affinity with God's creation led to him being named the patron saint of animals and ecology.