The answer is all of these.
The Duke is the speaker of the poem where he is entertaining an emissary who has come to negotiate the Duke's marriage. As he shows the visitor through his palace, they came across the portrait of the late Duchess. The Duke then began to reminisce about the portrait sessions and then about the Duchess herself. As his monologue continues, the reader realizes that it was the Duke who caused the untimely demise of the previous Duchess.
Need more details to answer.
First of all, you need to know what an appositive is.
It is a noun or a noun phrase that is used to modify, or refer to another noun which is usually located next to the appositive. In this case, the appositive phrase is Lucinda Gonzalez, because it modifies the noun <em>student.</em>
Stopping slavery and taking big voyages
