Thaddeus
From BiblePortal Wikipedia
Smith's Bible Dictionary [1]
Thadde'us. One of the twelve apostles. Matthew 10:3; Mark 3:18. From a comparison, with the catalogue of St. Luke, Luke 6:16; Acts 1:13, it seems scarcely possible to doubt that the three names, of Judas, Lebbeus, and Thaddeus were borne by one and the same person. See Jude .
American Tract Society Bible Dictionary [2]
A surname of the apostle Jude. See Judas 2.
Kitto's Popular Cyclopedia of Biblial Literature [3]
Thadde´us, a surname of the Apostle Jude, who was also called Lebbaeus (;; comp. ) [JUDE].