Today the junior school still educates the choirboys of the Cathedral .
However , prior to that date , there was a school on the grounds of Gloucester Cathedral ever since it was first built as the Abbey of St. Peter around the year 1100 .
Today the junior school still educates the choirboys of the Gloucester Cathedral .
However , prior to that date , there was a school on the grounds of Gloucester Cathedral ever since it was first built as the Abbey of St. Peter around the year 1100 .