You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Edmund_Burke

Context:
At about this same time, Burke was introduced to William Gerard Hamilton (known as "Single-speech Hamilton"). When Hamilton was appointed Chief Secretary for Ireland, Burke accompanied him to Dublin as his private secretary, a position he held for three years. In 1765 Burke became private secretary to the liberal Whig statesman, Charles, Marquess of Rockingham, then Prime Minister of Great Britain, who remained Burke's close friend and associate until his untimely death in 1782. Rockingham also introduced Burke as a Freemason.

Question:
Who was William Gerard Hamilton's private secretary?

Burke