From The Times:
After a stressful morning of work, Henrik Lenkeit, a German couples counsellor and part-time priest living on the Costa del Sol, decided to call it a day at lunchtime.
Idly combing the internet for more information, Lenkeit came across an image of Himmler’s mistress and did a double take. The woman not only bore an uncanny resemblance to his grandmother, but also shared the same dates of birth and death. Over several months of amateur genealogical research, Lenkeit, 48, confirmed that Himmler had been his grandfather.