Aalsum (West Frisian: Ealsum) is a village in the Dutch province of Friesland. It is located in the municipality Noardeast-Fryslân, about 1 km north of Dokkum. It had a population of around 125 in January 2017

Aalsum is built on a partially excavated terp, around a church originally dedicated to St. Catherine of Alexandria, which dates back to approximately 1200 AD.

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  1. Nederlands Hervormde Kerk Registry of marriages, Nederlands Hervormde Kerk, RinsumageestRinsumageestMarriage record for Jacob Botes & Rinske Douwes, marriages, Nederlands Hervormde Kerk, Rinsumageest, 1808-07-30
  2. Nederlands Hervormde Kerk Baptisms, Nederlands Hervormde Kerk, RaardRaardBaptism record for Rinske Douwes, baptisms, Nederlands Hervormde Kerk, Raard, 1787-08-17
  3. Gemeente Oostdongeradeel Burgerlijke Stand OostdongeradeelOostdongeradeelDeath record for Renske Douwes, civil registry of deaths, Oostdongeradeel, 1821-06-19, sheet 9