Via ScreenRant.com:

In Star Wars Episode III: Revenge of the Sith, Emperor Palpatine unleashed Order 66, turning all of the Clone Troopers against their Jedi compatriots. This led to the wipeout of nearly all of the Jedi Order.

The strong Jedis that were wiped out were a great loss to the Order. Here are ten of the strongest Jedi that were wiped out by Order 66.

Click below to see the 10!