Sentence:  Aurochs? (Of which the last is thought to have died in Poland in 1627.) Probably not, since they simply were wild, but I haven't found anything else besides the wisent (<WSD>zubr</WSD>, European bison).<!-- http://books.google.com/books?id=bzCRWvU-OTAC&pg=PT53&dq=zubr&lr=&ei=dzI5UcaGHYG6kgTwuYFA&cd=18 is a 2011 cite, but too illegible for me to really use --> 
Meaning of the word marked with <WSD> tags:  The wisent, the European bison ("Bison bonasus").