Original: In August 1921, de Valera made the DÃ il upgrade his office from Prime Minister to President of the Irish Republic, which ostensibly made him equivalent to George V in the negotiations.
Simplified: In August 1921, Eamonn de Valera made the DÃ il upgrade his office from Prime Minister to President of the Irish Republic. This made him on the same level as George V in the negotiations.