That is, one year older than Ehrengard Melusine von der Schulenburg

Koen Druyts of Turnhout in Belgium is officially 338 years old this year. According to the chip in his new ID card, Mr Druyts was born in 1668, the year of the signing of the Lisbon peace treaty between Portugal and Spain; of the expulsion of all Roman Catholics from Ethiopia; of the birth of the composer Couperin and the great Dutch medical pioneer Boerhaave; and of Molière's play The Miser (L'Avare). Mr Druyts commented, "I look not too bad for my age, eh?" The card will be replaced free of charge, but in the meantime Mr Druyts will have no trouble buying alcohol, cigarettes or lottery tickets.

Thanks to Wikipedia for dates.