John XXIII, who will be made a saint along with John Paul II at the Vatican, is credited with saving thousands of Jews during the Holocaust and opening the door to Judeo-Christian dialogue, Baruch Tenembaum told AFP in an interview at the Foundation's New York headquarters.
The Italian-born John XXIII, whose given name was Angelo Giuseppe Roncalli, "did such extraordinary things. I'm delighted that he is becoming a saint, even if -- as a Jew -- beatification doesn't affect me."
As the Vatican's envoy to Turkey from 1935, John XXIII helped save the lives of thousands of Eastern European Jews facing persecution from the Nazis, including by giving Hungarian Jews baptismal certificates.
"At the time, having identity papers labelling you a Catholic was enough to save your life," Tenembaum said.
A document on file at the Yad Vashem Holocaust memorial in Israel cites the future pope as being "among the most sensitive to the Jewish tragedy and most vigorous in rescue efforts".
The International Raoul Wallenberg Foundation Honor's the legacy of a Swedish diplomat, posted to Nazi-occupied Budapest in July 1944, who is believed to have saved tens of thousands of Hungarian Jews in the final months of the Holocaust by providing them with protective passports.
The foundation works to preserve his legacy and that of others who saved numerous lives, and not only during the Shoah.
Tenembaum has worked hard to publicise John XXIII's work during his time in Turkey, about which there are few official records.
