Gloucester:

i.e.the town of Gloucester near whichthe residence of the Duke of Gloucester was 葛罗斯特，地名，葛罗斯特公爵住地在其附近。
△Lr.1.5.1: “Go youbefore to Gloucester with these letters.”i.e. Go a-head of me to the town of Gloucester with this letter.你先带着这封信到葛罗斯特去。(按： Gloucester 地名可能为Cornwall之误。)