Lord High Treasurer of Ireland

The Lord High Treasurer of Ireland was the chief financial officer of that kingdom until the treasuries of Great Britain and Ireland were united in 1817 when it was united with the Lord High Treasurer of Great Britain by the Consolidated Fund Act 1816. The designation High was added in 1695.

The board was abolished in 1817 when the office of Lord High Treasurer of Ireland was combined with that of Lord High Treasurer.

...
Wikipedia