I don't think [P] is Bruno Platter. Bruno Platter is the head of Clerical Arm of the Teutonic Order.
It was formally revived on Christmas Day 2001 into Order of the Teutonic Knights making a separate order for Order from the Clerical Papal Arm of the Order in Rome - Headed by Dr. Bruno Platter.
Grand Mastership of the Teutonic Order - Deutscher Orden - German Order is headed by Prince Karl Friedrich, Prince of Hohenzollern. He assumed the position on 1st of January, 2002, as the 60th Chivalric Hoch-und-Deutschmeister of the Teutonic Order of the Knights of St Marys Hospital in Jerusalem.
I think that is [P].
[P]RINCE KARL FRIEDRICH OF GERMANY