"No Pope in history has been thanked more heartily by Jews. Upon his death in 1958, several suggested in open letters that a Pope Pius XII forest of 860,000 trees be planted on the hills of Judea in order to fittingly honor the memory of the late Pontiff because the Catholic Church under the pontificate of Pius XII was instrumental in saving the lives of as many as 860,000 Jews from certain death at Nazi hands."
January 1, 1970
https://en.wikiquote.org/wiki/Pope_Pius_XII