Sentence:  ... in himself was all his state, / More solemn then the tedious pomp that waits / On Princes, when thir rich Retinue long / Of Horses led, and Grooms besmeard with Gold / Dazles the croud, and sets them all <WSD>agape</WSD>. 
Meaning of the word marked with <WSD> tags:  In a state of astonishment, wonder, expectation, or eager attention; as with mouth hanging open.