Why Ey=?UTF-8?B?xZ8=?=an (turkish series Ezel) die?

I started to watch turkish serie Ezel and I like it very much. I want
to know why Eysan die in last epizode? Does somebody kill her?

I have one more question. Is Can (son of Eysan) son of Ezel or son of
Cengiz?

Thank you for answer