who is Frédéric Chopin?
Yes, I know. He was a Polish composer and virtuoso pianist 
How many performances  did he give in his lifetime?
Not many, he primarily wrote music for the solo piano but did not perform much.
was he ever married?
Yes but his wife died soon into the marriage, but he still gained and has maintained renown worldwide!
did any event in his life affect his career decision?
Well, he grew up in Warsaw, which in 1815 became part of Congress Poland, and there were many famous pianists around him which inspired him. 
Thanks buddy for enlightening me about  Frédéric Chopin
No problem, remember, he completed his musical education so you should also try to learn from him if you like music.