Simplify the following text for a Grade 5 native English-speaking person.
Original: The aurochs originally ranged throughout Europe , North Africa , and much of Asia . In historical times its range became restricted to Europe , and the last known individual died in Masovia , Poland , in about 1627 .
Simplified: The last Aurochs , wild cattle of Europe , were killed in Masovia , Poland in 1627 .