Hiram Abiff (other spellings "Huram", "Abif", and "Huram-Abi"; also known as "the Widow's Son") is a character who figures prominently in an allegorical play that is presented during the third degree of Craft Freemasonry. In this play, Hiram is presented as being the chief architect of King Solomon's Temple, who is murdered by three ruffians during an unsuccessful attempt to force him to divulge the Master Masons' secret password. It is explained in the lecture that follows this play that the story is a lesson in fidelity to one's word, and in the brevity of life.
Numerous scholars, both Masonic and non-Masonic, have speculated that the character may have been based upon one or more Hirams that appear in the Bible.
Read more about Hiram Abiff: The Masonic Legend of Hiram Abiff, Hirams in The Bible, Other Accounts of A Biblical Hiram, Other Theories