These are a combination of sinner vs saint romances or where in general heroine is (daughter, sister, widow, love interest) of a vicar, minister, preacher, or parson. They are primarily historical romances. These romances often center around the "innocent" with the "rake" but can also revolve around faith, general duties of "vicar's daughter" style story or other. Although not as common, the hero may be a vicar, parson or preacher too.