Weidmann, one of the names in the race to replace Mario Draghi in November, has been critical of the ECB's 2.6 trillion euro (2.27 trillion pounds)bond-buying stimulus programme and opposed a separate scheme allowing the central bank to help countries in distress.

He also criticised the economic policies of successive Italian governments.

"There's no point in focussing on past stances because the world evolves and players' ideas evolve with it," Giovanni Tria told Reuters in an interview.

(Reporting By Silvia Aloisi, Writing by Francesco Canepa)