Schwarzenberg (Czech: ze Švarcenberka) is the name of a Frankish and Bohemian aristocratic family that had first been mentioned in 1172.

A branch of the Seinsheim family (the non-Schwarzenberg portion eventually died out), the House of Schwarzenberg is created when Erkinger I of Seinshein acquires the Frankish barony of Schwarzenberg, the castle Schwarzenberg and the title Baron of Schwarzenberg, in 14051.

At this time the family also possesses some fiefdoms in Bohemia.