The account of marriage Kant presents in the Rechtslehre strikes most readers as cold, legalistic and obsessed with sex. It seems to ignore at least nearly all of the morally valuable aspects of marriage. Consequently, most have felt that this is a feature of Kant's theory best ignored. Against this view, this article argues that Kant's focus is appropriate, that his understanding of marriage is much more romantic than is commonly thought and that it presents a thought-provoking alternative to the picture of marriage found in the modern law.