thanks for the link!
By the way, 400 Jews served as papal Palatine guards (at least on paper) and 240 of those lived in the Vatican during the German occupation of Rome. The Palatine guards’ ranks swelled from 300 members to 4,000 during WWII. Most of these new guards were people in hiding who were dependent upon Pius XII and the Vatican passports that he gave them as Palatine guards!
Lapide talks about this in his classic book if I remember correctly.