Yosef, son of Meir and Sarah Schwarzenberg, was born on April 17, 1945, in Herzliya. In the Six Day War, on the third day of the battles, on 28 Iyar 5727 (7.6.1967), Yosef fell in a battle that took place at the entrance to the Rockefeller Museum in Jerusalem and was buried in the military cemetery on Mount Herzl in Jerusalem.