Frederick Hermann, the 1st Duke of Schomberg was King William’s principal general in Ireland between 1689 and up until his death at the Battle of the Boyne in July 1690. Leading up to the decisive battle, Schomberg and his troops billeted in Lisburn throughout the winter of 1689/1690.
On 18th January, 1690 Schomberg issued a famous proclamation which forbade swearing and blasphemy by the troops in his charge. The proclamation issued ‘at our headquarters in Lisburn’ spoke of the ‘horrid and detestable crimes of prophane cursing, swearing, and taking God’s holy name in vain’.
You can view a copy of this proclamation here, part of the Irish Linen Centre and Lisburn Museum’s collection.