Place of Birth: Rostock, Mecklenburg, Nazi Germany (now part of Mecklenburg-Vorpommern, Germany)
Date of Birth: 24 January 1940
Ethnicity: German
Joachim Gauck is a German politician. He has served as the President of Germany, since 18 March 2012. Joachim is the son of Olga Frieda Henrika “Olly” (Warremann) and Wilhelm Joachim Gauck. He is married to Gerhild “Hansi” Radtke, however they have been separated since 1991.
Joachim’s paternal grandparents were Walter Robert Lothar Müller (the son of Robert Müller) and Antonie Erna Wilhelmine Emma Gauck (the daughter of Ernst Wilhelm Heinrich Gauck and Sophie Wilhelmine Marie Rasch). Ernst was the son of Adolf Karl Daniel Gauck and Ernestine Wilhemine Karoline Wendtland. Sophie was the daughter of Georg Wilhelm August Rasch.
Joachim’s maternal grandfather was Franz Ernst Carl Warremann (the son of Christian Friedrich Karl Warremann and Dorothea Johanna Friederike Buchholz). Christian was the son of an unknown father and Marie Sophie Dorothea Warremann. Joachim’s great-grandmother Dorothea was the daughter of Christian Matthias Johann Buchholz.
Joachim’s maternal grandmother was Luise Wilhelmine Caroline Henriette Gossel (the daughter of Johann Christian Wilhelm Gossel and Caroline Dorothee Henriette Kröger). Joachim’s great-grandfather Johann was the son of Johann Joachim Friedrich Ernst Gossel. Joachim’s great-grandmother Caroline was the daughter of Joachim Heinrich Jacob Kröger.
Source: Genealogy of Joachim’s brother, Eckard Gauck – http://gedbas.genealogy.net