 A major theme in feminist political philosophy has been the exclusion of the marital family from justice. Political philosophy has tended to relegate family life to natural hierarchy or affection (Okin 1979, 1989). Historically, this meant that the private sphere of marriage, to which women were confined, was also the zone of state non-interference, so that what happened to women there was not subject to norms of justice. Gradually, law and political philosophy have come to recognize that equal rights and liberties should be upheld within the private sphere as outside it, but many political philosophers still resist applying principles of justice directly within the private sphere. However, feminists argue that gender-structured marriage contributes to, or is even the mainstay of, women’s economic inequality and disempowerment, and that justice must therefore regulate its terms—even, perhaps, to the point of interfering with voluntary marital relations (Okin 1989, Ferguson 2016). At the same time, marriage has been a crucial site of socially valuable care work, which often falls disproportionately on women, and recent feminist work has focused on how the state can support that work more equitably (Metz 2010, Bhandary 2018).