Mathäus Antonius Maria Graf von Thun und Hohenstein was born in Bolzano in 1952.
He was the eldest son of the Helene Grabmayr von Angerheim and Otmar von Thun-Hohenstein, who were ceramicists and proprietors of Thun Ceramic Workshops, an artisanal ceramic firm based out of the basement of their family's castle, Ansitz Klebenstein.
[4] He founded Matteo Thun & Partners, a multicultural architecture and design studio with headquarters in Milan, Italy and a subsidiary in Munich, Germany.
The company operates internationally and develops hospitality, residential, headquarters, retail and urban design projects and master planning.
Together with his partner Antonio Rodriguez, the office employs 70 experts from the fields of architecture, design and communication.