Irish pound
In 1801, Great Britain and the Kingdom of Ireland were united to form the United Kingdom of Great Britain and Ireland. However, the Irish pound continued to exist and was not replaced by sterling until January 1826. The conversion rate had long been 13 Irish pounds to 12 pounds sterling. In 1928, six years after the Anglo-Irish Treaty restored Irish autonomy within the British Empire, the Irish Free State re-established the Irish pound, pegged at par to sterling.