The Bride Quest is a series of medieval romances with a fairy tale tone. The first three books follow the adventures of three brothers and the next three feature a widow and her two daughters. The series is structured as two trilogies, so you can begin either at book #1 or book #4, but as continuing characters have cameo appearances throughout the series, I think it’s better to start with book #1.
As elsewhere, each book cover is linked to the landing page for that book on the Delacroix site. There are also Bride Quest family trees available for free download on the Delacroix site.