Question: On 5th August 2011 a "secret" letter to Italian government was written by Jean Claude Trichet and the Chairman of what?
Sentence (from "Letter of ECB to Italy on 5th August 2011"): On 5th August 2011, during dramatic crisis of European banks, the former governor of ECB, Jean Claude Trichet, together with Mario Draghi, wrote a "secret" letter to Italian government, at the time led by Silvio Berlusconi, in which they pushed for a series of economic measures "to be implemented as soon as possible".
Relevant evidence: Yes