Renier van Tzum also known as Tzom or Reijnjer van't Zum,, was a merchant/trader and official of the Dutch East India Company.
Ayutthaya (city) around 1665, with Dutch settlement on the square island south of the middle.
Dejima ca 1650. From: Arnoldus Montanus: Gedenkwaerdige Gesantschappen der Oost-Indische Maetschappy in't Vereenigde Nederland, aen de Kaisaren van Japan. 1669
Tombstone of Reynier van Tzum and his wife on churchyard in IJlst