In the book to kill a mockingbird who tried intimidate Calpurnia at her own church?

It was Mrs. Henry Lafayette Dubose, not Calpurnia, who was intimidated at her own church.

Mrs. Dubose, a racist and bitter woman, was known for her harsh words and prejudice against Black people. She often made snide remarks towards Calpurnia and even refused to acknowledge her presence.

Calpurnia, despite the disrespect, remained strong and dignified. She never retaliated or showed fear, showcasing her strength and resilience in the face of adversity.