On 16 August 1570, by the Treaty of Speyer, the Eastern Hungarian Kingdom became the Principality of Transylvania.

Kraszna was one of the counties of the Partium which were ruled by Transylvania but legally considered part of Hungary.

Kraszna remained under Transylvanian rule until the Treaty of Karlowitz in 26 January 1699, whereby Transylvania, the Partium and most of Ottoman-controlled Hungary passed to the Habsburg Monarchy.

Transylvania formally became a crown land in the 1711 Treaty of Szatmár which ended Rákóczi's War of Independence, but the status of the Partium remained ambiguous until 1732, when Kraszna definitively became part of Transylvania, along with Közép-Szolnok County [hu], Kővár District [de; hu; ro] and the rump Zaránd County.

On 29 May 1867 the Austro-Hungarian Compromise, which transformed the Austrian Empire into Austria-Hungary, saw the abolishment of Transylvania; its counties fell directly under Hungarian rule, becoming part of "Transleithania".