2.  The Council of Trent's, definition of seven sacraments is historically problematical.  The Scriptural basis for matrimony "founded by Christ" is weak.  Matrimony was a civil matter until the Roman Church dominated Western culture in Medieval times, moving from blessing the wedding procession, as it moved between homes, to having the ceremony inside the church, to legislating limits.  The mention of who has access to hospitalized persons is a reminder of the many civil considerations as to who has marital rights and privileges.  
    The entire question of sexuality, society, patriarchalism, fertility, inheritance, and body/spirit dichotomy needs to be addressed along with the assumptions built into the Natural Law approach.  Are most first marriages between persons with full theological knowledge and consent or only informed as to social customs and expectations, including possible divorce and remarriage?