looking up this vatican "2" thing:

[link to en.wikipedia.org]

interestingly:
"Pope John XXIII opened the Council on 11 October"

and

"13 October 1962 marked the initial working session of the Council"

so almost on the anniversary. and they do love their 11 and 13

After adjournment on 8 December, work began on preparations for the sessions scheduled for 1963. These preparations, however, were halted upon the death of Pope John XXIII on 3 June 1963

" Josef Frings criticized the Holy Office, and drew an articulate and impassioned defense by its Secretary, Alfredo Ottaviani. This exchange is often considered the most dramatic of the council. (Cardinal Frings's theological advisor was the young Joseph Ratzinger, now Pope Benedict XVI, who would later, as Cardinal, head the same department of the Holy See.) "


so frings and ratzinger, both german. take over.