In Portugal, morganatic marriage was not recognized. Any legitimate child of Afonso and Nevada could become the lawful heir to the Portuguese throne. Nearly as disturbing was the prospect that both Manuel and Afonso would fail to produce an heir. In this event, the claimant to the Portuguese throne would be a descendant of Miguel I, the absolutist king who, in 1834, lost the Portuguese War of the Two Brothers to the liberal line of constitutional monarchs.