Bertrand Philip Sigismund Albrecht, Count of Gronsveld-van Diepenbroick-Impel (19 November 1715, Empel – 15 November 1772, Amsterdam) was a former Dutch envoy in Berlin to Frederick the Great.
He was the fourth son of Johann Bertram Arnold, Freiherr von Diepenbroick, from 1719 on "von Gronsfeld-Diepenbroick", and Wilhelmine, countess of Wartensleben. In 1750 or 1751, Bertrand married Amöne Sophie Friederike zu Löwenstein-Wertheim-Virneburg. He was lord of Wijngaarden and Ruigbroek from an unknown date.
Bertrand Philip then started the first porcelain factory in the Netherlands in the town of Weesp in 1759.[1] with Louis Gerverot as a painter. However, the enterprise went bankrupt and its goods and clays were temporarily stored in the Muiderslot and then sold to the minister Joannes de Mol.
Gabriëls, A.J.C.M. (1990) De heren als dienaren en de dienaar als heer. Het stadhouderlijk stelsel in de tweede helft van de achttiende eeuw, pp. 120–1, 170.