One of the most intimate friends of Lady Falkland was William Chillingworth, but after his conversion to Protestantism she blamed him for endeavouring to pervert her children. She published a translation of French Cardinal Jacques Davy Duperron's reply to the attack on his works by King James, but the book was ordered burned. Afterwards she translated the whole of Perron's works for the benefit of scholars at Oxford and Cambridge, which was never printed. She also wrote in verse the lives of St. Mary Magdalene, St. Agnes the Martyr, and St. Elizabeth of Portugal, as well as numerous hymns in honour of the Virgin Mary. The collected edition of the works of John Marston (1633) is dedicated to her.