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Tibout Regters (1710-1768)
Nicolaas Ypey (1714-1785). Dated 1763. Canvas, 85 × 70 cm.

Franeker, Museum 't Coopmanshûs, inv.nr. Sch. 108. From the Ypey family collection. Presented in 1972 by Mrs. W.E. Ypey to the Fries Museum, Leeuwarden. On loan to the Franeker museum.

Ypey studied in Franeker and Leiden before going to Paris, where he followed courses in military fortification. He succeeded one of his teachers in Franeker as lecturer and then professor, teaching and publishing on fortification, mathematics, astronomy, economics and political science.

NNBW, vol. 5, cols. 1161-1162. Ekkart 1977, nr. 324.