aka Elfgiva (Williamson, David. Debret's kings and queens of Britain. Topsfield, Mass. : Salem House Publishers, 1986. pg. 219). aka Elgiva (Browning, Charles H. Americans of royal descent, 7th ed. Baltimore : Genealogical Pub. Co., 1986, pg. 282). aka Elgifa (Browning, pg. 418). aka AElfgifu (www site: Directory of royal genealogical data).