Where was the confectionary company owned by  Maria Franca Fissolo developed?
Maria Franca Fissolo Maria Franca Fissolo (born 1941) is an Italian billionaire, the widow of Michele Ferrero, and the owner of Ferrero SpA, Europe's second largest confectionery company.
Bombrini-Parodi-Delfino Bombrini-Parodi-Delfino (better known as BPD), was a chemical company founded in 1912 by Giovanni Bombrini and Leopoldo Parodi-Delfino to produce gunpowder and explosives. Around its location in Colleferro (south of Rome) soon grew a small town attracting manpower from the nearby farms. After World War I, BPD expanded its activities on fertilizers and cement at nearby Segni (Società Calce e Cementi). In 1938 an explosion in the gunpowder plant killed 60 people. After World War II, BPD diversified into mechanics, textiles and chemistry. The last remaining owner, the Parodi-Delfino family, entered a joint venture with SNIA-Viscosa in 1968. SNIA’s chemical division was thereafter named SNIA BPD until BPD was sold to Simmel Difesa, when it was renamed SNIA SpA.