Lady Lucas's first name is unknown, but as she is the wife of a knighted gentleman, she is addressed as "Lady Lucas". Sir William's title is not hereditary, so his sons will not receive in when he dies. She and her husband were overjoyed when Charlotte became engaged to Mr. Collins and that he was to inherit Longbourn due to the entail. Lady Lucas made a very macabre remark about waiting for Mr. Bennet to die.