Gerhard von Hosstrup

Gerhard Carsten Jakob von Hosstrup (or Hoßtrup) (born 23 April 1771 in Hamburg, died 7 September 1851) was a Hamburg businessman and the founder of the Hamburg Stock Exchange building (Hamburger Börsenhalle).

He was married to Sophie Henriette Elisabeth (Betty) Seyler (1789–1837), and after her death in 1837 to her sister Louise Auguste Seyler.

They were members of the Berenberg-Gossler-Seyler banking dynasty, being the daughters of Ludwig Erdwin Seyler and granddaughters of Johann Hinrich Gossler and Elisabeth Berenberg.

They were also granddaughters of theatre director Abel Seyler.

He was the brother-in-law of Hamburg ship broker Ernst Friedrich Pinckernelle and Norwegian industrialist Jacob Benjamin Wegner.

Gerhard von Hosstrup and his wife Elisabeth née Seyler , painted ca. 1815 by Friedrich Carl Gröger