[4][5][a] Archaeological excavation, during September–November 1989, of the land immediately adjacent to The Brazen Head demonstrated evidence that the area had been in use as early as the 13th century, when activities to reclaim the riverside marshland began.

[7] Wicker mats—used to establish foundations on the silted floodplain—and a section of post-and-wattle wall dating from the 13th century were found, along with many medieval pot sherds and other artefacts.

[11][3] However, this reference to a 1613 Brazen Head did not take place until 1700, where it appears in a writ issued against the estate by three merchants—John Withington, James King, and John Kennan—relating to an outstanding debt dating from 1613.

[11] In the 17th century, Bridge Street was a "residential area for the nobility and wealthy merchants", and residents included Sir Winston Churchill and the Marquess of Antrim.

[17] It was the activities of the rapparees that led to an order being issued for all officers who had laid down arms to report to the authorities on pain of being declared outlaw and having their lands and property confiscated.

At the Brazen Head, textile merchants John Lloyd and Stephen Sly sold various "Broadcloths, Druggets, Sarges, Damasks, Poplins, Shammy skins" and "woollen goods by wholesale or retaile.

[22] John Lonergan, a highwayman from Waterford, also left a message engraved on a pane of glass, half way up the staircase, to the effect that he halted there on 7 August 1786.