Ceremonial maces in the United Kingdom carried by the Yeoman Usher of the Black Rod and placed behind the Lord Speaker on the Woolsack before the House sits. All members are required to bow their heads to the mace upon entering the chamber. It is absent when the monarch delivers his or her speech from the throne at State Openings of Parliament. The other mace accompanies the Lord Chancellor on official duties outside the House of Lords. Mace A was made in the reign of Charles II , is long and weighs . Mace B was made in the reign of William III and Mary II
Judicial functions of the House of Lords House could vote. The position of the Lords Spiritual (the Archbishops and Bishops of the Church of England with seats in the House), however, was unclear. The Lords Spiritual, though members of the House, were not considered "ennobled in blood" like the temporal peers. Though they retained the right to vote in both trials of peers and impeachment trials, it was customary for them to withdraw from the chamber immediately before the House pronounced judgment. This convention was followed only before the final vote on guilt and not on procedural questions arising during the trial. When the House was not