Opening a pizza joint in a city that’s world renowned for its pies requires some gumption. Maria Rosaria Artigiano, 56, the energetic owner of Pizzeria ‘Ntretella, which opened a few years ago, certainly has it; so does her brother, the brilliant chef Gennaro Artigiano. The beautiful restaurant they built together has quickly become a “new classic” in the panorama of Neapolitan pizzerias. Gennaro, 57, owns Locanda Ntretella, an old restaurant in the Spanish Quarter known for its excellent cuisine. Yet he is a restless man, always on the lookout for a new challenge. So in 2013, when he heard of an old carpentry shop in the heart of the Spanish Quarter, he visited the space and realized it would be a perfect place to open a pizzeria.