Ceremonial maces in the United Kingdom began as lethal weapons of medieval knights in England, Scotland, and Wales, evolving into ceremonial objects carried by sergeants-at-arms.

The usher of the Black Rod is an official in the parliaments of several countries of the Commonwealth of Nations. The title is often shortened to Black Rod, and in some countries, formally known as Gentleman Usher of the Black Rod if male, or Lady Usher of the Black Rod if female. The position originates in the House of Lords in the Parliament of the United Kingdom. Equivalent positions also exist in Australia, Canada and New Zealand.