As the Irish bureaucracy expanded, the duties of the Master of the Rolls came to be performed by subordinates and the position became a sinecure which was awarded to political allies of the Dublin Castle administration.
As late as the mid-sixteenth century the office was held by John Parker, a layman who had made a fortune from selling hats; nor was his successor, Henry Draycott, as far as is known, a lawyer; yet both performed the duties assigned to them competently and were valued public servants.
In the nineteenth century, the office became a full-time judicial position: the Master acted as Deputy to the Lord Chancellor of Ireland, with full powers to hear any lawsuit brought in the Court of Chancery.
A number of gifted judges, including Sir Michael Smith, Edward Sullivan and Andrew Marshall Porter greatly enhanced the reputation of the office.
[1] In 1923, Charles Andrew O'Connor as Master of the Rolls participated in the Judiciary Committee established by the Free State Executive Council which planned the Courts of Justice Act 1924.