Jonkheer Johan Cornelis Marius van Riemsdijk (16 December 184130 June 1895) was a Dutch Muggle musician and author.[1][2][3]

A copy of his book Het Stads-Muziek-Collegie te Utrecht (Collegium-Musicum-Ultrajectinum): Eene Bydrage tot de Geschiedenis der Toonkunst in Nederland could be found in the Hogwarts library by the 1990s.[3]


Notes and references

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