Georg Bruhns
From pipe-organ.wiki
Georg Bruhns was Nicolaus Bruhns' brother and was his successor at the Stadtkirche, Husum.
The Preludium in G Minor which appears in D-B Mus.ms. 30381 was theorized to have been composed by Georg by Barbara Ann Raedeke. However, no other organ music by him survives.
References
McLean, Hugh J., Bruhns, Nicolaus. Grove Music Online, 20 January 2001. [1], accessed 3 September, 2023.
Beckmann, Klaus (editor). Nicolaus Bruhns: Sämtliche Orgelwerke. Meister der Norddeutschen Orgelschule 13. [earlier edition, not including Brunckhorst] Mainz: Schott, 2004.