In 1904, Pope Pius X received Theodore Herzl, the founder of modern Zionism

You can find into on this meetings from many websites by going to google and searching for 'Pope Pius X Herzl Zionism' and here is an excerpt from of the web pages:
"On January 25, 1904, Herzl was received in audience by Pope Pius X. Nine years before, as he penned The Jew State, Herzl had shown his sympathetic awareness of Roman Catholic concerns, and formulated Zionist policy regarding them: "The sanctuaries of Christendom would be safeguarded by assigning to them extra-territorial status such as is well known in the law of nations. We should form a Guard of Honour about these sanctuaries, answering to the fulfilment of this duty with our existence."