Oscar Wilde 
The model millionaire [PDF ebook] 

Hughie Erskine is in love and wants to marry, but the girl’s father will not allow it, since Erskine has no money. Erskine’s friend, Alan Trevor is a painter, and he visits him at his studio one day to find him with a pitiable beggar—the model for his painting. Erskine only has one coin, which he depends on for transportation, but he decides he can walk for a couple weeks and gives the beggar the coin. The beggar is in reality an immensely wealthy baron, having a portrait of himself as a beggar done for fun. He is so impressed by Erskine’s generosity that he gives him £10, 000, enough for the girl’s father to consent to his proposal.