No, they did not; the conferences were attended by the governments of the German states, who had passed through the de-Nazification filter but were otherwise se

No, they did not; the conferences were attended by the governments of the German states, who had passed through the de-Nazification filter but were otherwise selected by purely German political processes. When it came to the content of the constitution, the Allies' conditions were clear and pretty general - it had to be democratic, and it had to be federal. (The latter was distinguished from the Weimar constitution only in that the Allies insisted on general size parity between states.) Plus complying with occupation policy on control of heavy industry. See https://de.m.wikipedia.org/wiki/Frankfurter_Dokumente https://de.m.wikipedia.org/wiki/Frankfurter_Dokumente The main principles of the constitution itself were assembled by German elected governments of the states (https://de.wikipedia.org/wiki/Verfassungskonvent_auf_Herrenchiemsee#Ergebnisse https://de.wikipedia.org/wiki/Verfassungskonvent_auf_Herrenc...), and were very much direct responses to the process of the Nazi takeover in 1933.