1 Soon as the Elfin knight in presence came

Soon > [As soon] presence > presence-chamber (where a sovereign receives visitors)

2 (And false Duessa, seeming lady fair), 3 A gentle usher, Vanity by name,

gentle > gentle; noble (used ironically)

4 Made room, and passage for them did prepare: 5 So goodly brought them to the lowest stair

goodly > courteously

6 Of her high throne, where they, on humble knee 7 Making obeisance, did the cause declare

declare > declare, make clear; relate

8 Why they were come, her royal state to see,

state > throne; majesty, pomp