Geister der Zeit

the house as it is today. Given this information, you can calculate the coordinates of the next station as follows:
N 54° 05.(Y-2V)(X)(Z)
E 013° 22.(Y-W)(Z)(V-5X),
whereby:
V = initial letter of the first Christian name,
W = initial letter of the second Christian name,
X = initial letter of the surname,
Y = house number,
Z = number of white flowers at the entrance door.
In addition A=1, Z=26.

Having arrived at these coordinates, you can admire a monument of personalities. The person you are looking for is depicted on this monument and was the only person still alive at the time of its inauguration. His services to society are judged very differently: on the one hand, positively as a democrat and a German patriot, but on the other hand negatively as a nationalist and an anti-Semite.
Sitting at his right side, there is another person who represents the medical faculty of the local university.
In order to discover the correct individuals, it is advisable to read about the monument and its personalities in advance.
Also for the second personality a memorial plaque was attached at a frequently visited university building which is in a distance of 129 meters.
Given these information there, you can calculate the final coordinates as follows:
N 54° 05.(R)(R-S)(R+S)
E 013° 22.(R)(S+U)(S+T),
whereby:
Age=RS
Period of activity=TU
(year corresponds to a two-digit number)

Please, bring along a pencil.