Achille Castiglioni. Born in Milan (1918-2002), Achille Castiglioni started work as an architect and designer with his brothers Livio and Pier Giacomo in 1938. One of the great masters of Italian design, Achille Castiglioni was a founding member of ADI in the fifties. The long list of awards he has received include eight Compassi d'Oro. Achille Castiglioni's activity as a designer is an unmistakable blend of simplicity, irony and fun and it shows his close interest in the way objects are used, in the potential offered by technology and in the use of new materials. Pier Giacomo Castiglioni: The Italian designer and architect Pier Giacomo Castiglioni is the second of the three Castiglioni brothers. Like his brothers, Pier Giacomo Castiglioni studied architecture at Milan Polytechnic, taking his degree in 1937. In 1938 Pier Giacomo Castiglioni and his elder brother, Livio, founded a practice in Milan, which the youngest brother, Achille, joined in 1944. All three Castiglioni brothers were interested in both technology and art. Livio left the joint practice in 1952 to go his own way. Pier Giacomo Castiglioni is regarded as the intellectual equal of his brother Achille. Until his untimely death in 1968, Pier Giacomo collaborated with Achille on numerous designer objects.