Who is Hosny Allam from Miramar and what is their importance?

Hosny Allam is the novel's second narrator, and he is the fourth of five boarders to take a room at Mme. Mariana's Miramar Pension. He is described as powerfully built, like a wrestler, and he comes from an old country family in Tanta. Hosny is smug about his background where his brother is a consul in Italy, and his sister is married to the Egyptian ambassador to Ethiopia. He is defensive, however, about his own meager accomplishments and resents having been denied a good education and the opportunity to marry blue-eyed Mervat.