Complex sentence: Under the Supreme Court of Judicature Act (Ireland) 1877, the Court of Common Pleas was merged into the new High Court of Justice for Ireland; the Chief Justice of the Irish Common Pleas retained his old rank.
Split into simpler sentences: Under the Supreme Court of Judicature Act (Ireland) 1877, the Court of Common Pleas was merged into the new High Court of Justice for Ireland. The Chief Justice of the Irish Common Pleas, retained his old rank.