When did albert Einstein's parents die?

Einstein's father - Hermann Einstein - died in 1902.

His mother, however, i do not know because i was looking it up and NO ONE KNEW!!!!! I can't find anything about it, if you can help, let me know I'm doing a speech on him!!!!

P.S can you answer this?

E=mc2

???? If you can, the only other person who ever knew is Einstein !!! ????