Here's what's true about Uncle John Eyre:
* He's Jane's paternal uncle. He is the brother of Jane's father, who died before Jane was born.
* He's wealthy and influential. He is a prosperous businessman who is very important in the community.
* He's a harsh and demanding figure. He treats Jane coldly and doesn't offer her any love or affection.
* He's responsible for Jane's upbringing. He is the one who takes Jane in after her parents' deaths, but he doesn't care for her well-being. He sends her to live with his cruel wife, Mrs. Reed, and Jane experiences neglect and abuse there.
* He's a symbol of the injustices Jane faces. He represents the harsh reality of her life, the lack of love and support she receives, and the indifference of society to the struggles of an orphan like her.
Let me know if you have any more questions about "Jane Eyre" or its characters.