Burchard von Zollern[?] was born before 1025 and died in 1061.
Burchard's son was Friedrich von Zollern[?], born before 1055, died 1114/15 .
... of 1500.7 km². Of the total population of 26450, 13112 are male, and 13338 are female. The population density of the community is 18 inhabitants per km². ...