vegetation.] Egeria we have a reminiscence of a sacred marriage which the old Roman kings regularly contracted with a goddess of vegetation and water for the purpose of enabling him to discharge his divine or magical functions. In such a rite the part of the goddess might be played either by an image or a woman, and if by a woman, probably by the Queen. If there is any truth in this conjecture, we may suppose that the King and Queen of Rome masqueraded as god and goddess at their marriage, exactly as the King and Queen of Egypt appear to have done.[550] The legend of Numa and Egeria points to a sacred grove rather than to a house as the scene of the nuptial union, which, like the marriage of the King and Queen of May, or of the vine-god and the Queen of Athens, may have been annually celebrated as a charm to ensure the fertility not only of the earth but of man and beast. Now, according to some accounts, the scene of the marriage was no other than the sacred grove of Nemi, and on quite independent grounds we have been led to suppose that in that same grove the King of the Wood was wedded to Diana. The convergence of the two distinct lines of enquiry suggests that the legendary union of the Roman king with Egeria may have been a reflection or duplicate of the union of the King of the Wood with Egeria or her double Diana. This does not imply that the Roman kings ever served as Kings of the Wood in the Arician grove, but only that they may originally have been invested with a sacred character of the same general kind, and may have held office on similar terms. To be more explicit, it is possible that they reigned, not by right of birth, but in virtue of their supposed divinity as representatives or embodiments of a god, and that as such they mated with a goddess, and had to prove their fitness from time to time to discharge their divine functions by engaging in a severe bodily struggle, which may often have proved fatal to them, leaving the crown to their victorious adversary. Our knowledge of the Roman kingship is far too scanty to allow us to affirm any one of these propositions with confidence; but at least there are some scattered hints or indications of a similarity in all these respects between the priests of Nemi and the kings of Rome, or perhaps rather between their remote predecessors in the dark ages which preceded the dawn of legend.[551] § 2. The King as Jupiter