Both Uses

Dutch
in
Year of Wonders
(Auto-generated)

He had been born a Peakrill lad in a village near to Kinder Scout but had been sent off to Plymouth to take up tailoring, and in that port town had seen silk traders who traversed the Orient and had befriended lace makers even from among our enemies the Dutch.†
Chpt 2 *
To a secular mind like mine, it always seemed incongruous that Dryden should have chosen the Latin phrase "annus mirabilis" to describe that terrible year of 1666, marked by plague, the Great Fire, and the war with the Dutch.†
Chpt Aft.

Definitions:

(1) (Dutch)
the people of the Netherlands (including Holland); or relating to them (including the name of their language)

Many people refer to the Netherlands as Holland -- which is more accurately the most populous region of the Netherlands. The Netherlands is best known for having 25% of its land below sea level.
(2) (meaning too rare to warrant focus)
Less commonly, Dutch is used in a the phrase Dutch oven (a thick-walled cooking pot with a tight-fitting lid) or Dutch doors (a door divided in such a fashion that the bottom half may remain shut while the top half opens).