Pizza estimated that annual production of pizza cheese was in the U.S. and in Europe. Authentic Neapolitan pizza ("pizza napoletana") is made with San Marzano tomatoes, grown on the volcanic plains south of Mount Vesuvius, and mozzarella di bufala Campana, made with milk from water buffalo raised in the marshlands of Campania and Lazio. This mozzarella is protected with its own European protected designation of origin. Other traditional pizzas include "pizza alla marinara", which is topped with marinara sauce and is supposedly the most ancient tomato-topped pizza, pizza capricciosa, which is prepared with mozzarella cheese, baked ham, mushroom, artichoke and tomato,
San Marzano Oliveto to the history of Canelli. All were involved in the struggle between Asti, Alessandria and the Marquisate of Montferrat. From the mid-14th century San Marzano Oliveto was a fief of the Asinari, who also owned Costigliole d'Asti, Moasca and other villages. In 1280 Bonifacio Asinari, a rich merchant from Asti, left his wealth to his children, Bonifacio and Tommaso, who subsequently became the owners of San Marzano. In 1771, Philip Valentino Asinari became the first Marquis of San Marzano and Caraglio; his son Filippo Maria Antonio became a State Councilor, sent by Napoleon Bonaparte as ambassador to Berlin. In 1808