This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

In 1738, Sebastião José de Carvalho e Melo, 1st Marquis of Pombal, began a diplomatic career as the Portuguese Ambassador in London and later in Vienna. The Queen consort of Portugal, Archduchess Maria Anne Josefa of Austria, was fond of Melo; and after his first wife died, she arranged the widowed de Melo's second marriage to the daughter of the Austrian Field Marshal Leopold Josef, Count von Daun. King John V of Portugal, however, was not pleased and recalled Melo to Portugal in 1749. John V died the following year and his son, Joseph I of Portugal, was crowned. In contrast to his father, Joseph I was fond of de Melo, and with the Queen Mother's approval, he appointed Melo as Minister of Foreign Affairs.
Who was de Melo's second marriage to?