In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Example input: Passage: Nearing London, Oliver encounters Jack Dawkins, a pickpocket more commonly known by the nickname the "Artful Dodger", and his sidekick, a boy of a humorous nature named Charley Bates, but Oliver's innocent and trusting nature fails to see any dishonesty in their actions. The Dodger provides Oliver with a free meal and tells him of a gentleman in London who will "give him lodgings for nothing, and never ask for change". Grateful for the unexpected assistance, Oliver follows the Dodger to the "old gentleman's" residence. In this way Oliver unwittingly falls in with an infamous Jewish criminal known as Fagin, the gentleman of whom the Artful Dodger spoke. Ensnared, Oliver lives with Fagin and his gang of juvenile pickpockets in their lair at Saffron Hill for some time, unaware of their criminal occupations. He believes they make wallets and handkerchiefs.
Example output: Who believes Fagin's gang make wallets and handkerchiefs?.
Example explanation: This question is based on the following sentence in the passage "He believes they make wallets and handkerchiefs". It evaluates the understanding that the pronoun "he" refers to name "Oliver". You can ask questions like this one about most pronouns in a paragraph.
Q: Passage: In a letter to his friend and landlord Johann Lorenz Hagenauer (1712–1792), a prominent Salzburg merchant, written after the tour, Leopold quotes the German diplomat Friedrich Melchior, Baron von Grimm, who after hearing the children play had said: "Now for once in my life I have seen a miracle: this is the first". Leopold believed that it was his duty to proclaim this miracle to the world, otherwise he would be "the most ungrateful creature". He was said to have described Wolfgang as "The miracle which God let be born in Salzburg." Mozart biographer Wolfgang Hildesheimer has suggested that, at least in the case of Wolfgang, this venture was premature: "Too soon, [the] father dragged [the] son all over Western Europe for years. This continual change of scene would have worn out even a robust child..." However, there is little evidence to suggest that Wolfgang was physically harmed or musically hindered by these childhood exertions; it seems that he felt equal to the challenge from the start.Leopold wanted to begin the tour as soon as possible—the younger the children were, the more spectacular would be the demonstration of their gifts. The route he intended to take included southern Germany, the Austrian Netherlands, Paris, Switzerland and possibly northern Italy. The London leg was only added after urgings during the Paris visit, and the eventual Dutch trip was an unplanned detour. The plan was to take in as many princely European courts as possible, as well as the great cultural capitals—Leopold was relying on his professional musical network and on his more recent social contacts to obtain invitations from the royal courts. Practical assistance came from Hagenauer, whose trading connections in the major cities would supply the Mozarts with what were effectively banking facilities. These would enable them to obtain money en route, while waiting for the proceeds from their performances to accumulate.Wolfgang prepared for the tour by perfecting himself on the violin, which he had learned to play apparently without any tutelage whatsoever. As for more general preparation, the children delighted in making music together, something they never lost. On tour, even during the busiest travelling days they would fit in their daily practice, appearing to thrive on the hectic schedule. Before the journey could begin, Leopold needed the consent of his employer, the prince-archbishop. Leopold had only been appointed deputy Kapellmeister in January 1763; nevertheless the archbishop's consent to an extended leave of absence was granted, on the grounds that the Mozarts' successes would bring glory to Salzburg, its ruler, and to God.
A:
What is the first name of the person who offered practical assistance?