Mansfield Park, novel by Jane Austen, published in three volumes in 1814. In its tone and discussion of religion and religious duty, it is the most serious of Austen's novels. The heroine, Fanny Price, is a self-effacing and unregarded cousin cared for by the Bertram family in their country house. Fanny's moral strength eventually wins her complete acceptance by the Bertram family and marriage to Edmund Bertram himself.