So called "700-year-Oak" near the village Stapel (Amt Neuhaus, district Lüneburg, northern Germany) is supposed to be the "fatest" oak in Lower Saxony. The true age might be more than 500 years.
<a href="//commons.wikimedia.org/wiki/User:Fice" title="User:Fice">Christian Fischer</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>