The Rottenburgh family of Brussels was the leading provider of wind instruments to the Belgian market, supplying the court and the city's cathedral. Jean-Hyacinth Rottenburgh (1672--1756) made recorders, flutes, oboes, bassoons, violins and cellos. His signature I.H./Rottenburgh continued to appear on instruments made by his son Godfroid-Adrien Rottenburgh (1703--68). Godfroid-Adrien also produced flutes, oboes, clarinets and bassoons bearing his own mark, G.A./Rottenburgh. The surviving instruments produced by Jean-Hyacinth during the first three decades of the 18th century are particularly fine, and still easy to play. The recorders and flutes are in the French tradition, made with a narrow bore; indeed the earliest-known flute by Jean-Hyacinth is almost identical in proportions to contemporary Hotteterre flutes.  The sound file samples are from Handel's Sonata in F Major, HWV 369 using a Moeck-Rottenburgh Bass as a continuo instrument, with a long center joint to play at the original pitch of A403.