1 Wherewith he goes to that sovereign queen
Wherewith > With which
2 And, falling her before on lowly knee,
her before > [before her]
3 To her makes present of his service seen:
seen > shown, proven
4 Which she accepts with thanks and goodly gree,
thanks > goodwill, favour; graciousness goodly gree > gracious goodwill
5 Greatly advancing his gay chivalry.
advancing > extolling