A proclamation issued by King George III at the time of the Union of 1801 concerned flags at sea and repeatedly referred to "Ensigns, Flags, Jacks, and Pendants" and forbade merchant vessels from wearing "Our Jack, commonly called the Union Jack" nor any pendants or colours used by the King's ships. Reinforcing the distinction the King's proclamation of the same day concerning the arms and flag of the United Kingdom (not colours at sea) called the new flag "the Union Flag".