[1] https://en.wikipedia.org/wiki/List_of_recessions_in_the_Unit...
[1] https://en.wikipedia.org/wiki/List_of_recessions_in_the_Unit...
In the USA the two are the Great Depression (which the former Fed chief Ben Bernanke has argued was largely the result of Fed policies) and the early 1980s recession caused by the Fed increasing rates in an attempt to combat inflation. (It worked, inflation dropped, but many people lost their jobs.)
Edit: just noticed your edit, Bernanke never said that monetary policy caused the Great Depression, but it is the consensus view that policy was too tight during that period and exacerbated it. A mistake that no one is keen to repeat. Certainly the interest rate rises in the 80's caused a contraction, one could argue whether the subsequent recession was worth the cost of fighting inflation. I think all would agree that the stagflation that prompted that maneuver was not ideal.