Perhaps you're thinking of:
* Georgette Heyer: A prolific British writer known for her historical romance novels and mysteries, set in the 18th and 19th centuries. Some of her most famous works include "The Convenient Marriage," "The Black Moth," and "Regency Buck."
* Walter Heyer: A German philosopher and theologian who wrote extensively on philosophy, theology, and the history of religion.
Please double-check the name and provide more context if you'd like help identifying the author you're interested in.