Sentence:  [...] turned to another region which paid tribute to Pskov, the land of the <WSD>Chuds</WSD> (Estonian Finns). [...] Iuriev or Tartu as it became known was nominally under a <WSD>Chud</WSD> elder called Vetseke but had a garrison from Pskov. 
Meaning of the word marked with <WSD> tags:  A member of any of several Finnic peoples in the area of what is now Estonia, Karelia and Northwestern Russia.