Einstein and Serbian mathematician mileva had an unmarried illegitimate daughter Lisell (1902- 1903? ), but from 1903 to 19 19, Einstein married mileva, and later Mileva gave birth to two sons Hans Albert and Edward for Einstein.

What about the second one? ...

Einstein's second wife Elsa is his cousin, their mothers are sisters, Einstein and his second wife Elsa, and their great-grandfather is Rupert Einstein.

Occupation, I guess I am a housewife. ...