Question: Other than Valerie Bowman, who else wrote Regency romance novels? 
Context: Clare Darcy was the pseudonym used by the American novelist Mary Deasy (1914–1978) for her Regency Romance novels, i.e., novels set in Regency England.  She was born on May 20, 1914 in Cincinnati, Ohio, and died in Ohio in May 1978.  A number of the manuscripts of her Regency novels (as well as of her other works), along with notebooks, scrapbooks, photographs, correspondence, book reviews, etc., are in the collection of the Howard Gottlieb Archival Research Center at Boston University, whose website (see link below) provides further information about the Deasy/Darcy collection. Regency reenactment is historical reenactment of the British Regency period.  Groups portray the period from 1811 to 1820 through costume, manners, food, and social gatherings that celebrate the spirit of the era.  Groups often include a mix of Jane Austen fans, English country and Regency dancers, historical reenactors, costumers, artisans, craftsfolk, regency romance readers, and history buffs.  Their websites and newsletters are designed to teach members about Regency history, politics, and literature.  Many groups provide extensive bibliographies so that group members can research the era on their own.  Events and activities include period balls, entertainments, parties, teas, craft workshops, readings, movie marathons, costume sewing classes, dance classes, meals and picnics using Regency recipes, old-fashioned games, and discussions centered on a period theme.  The dress code is always Regency-themed and group members are encouraged to make their own costumes or to purchase or rent the clothes. Caris Roane is an author of paranormal romance novels.  As Valerie King she is also the author of Regency romance novels and won a 2005 Career Achievement Award for Regency Romance from "Romantic Times". Valerie Bowman is an author of historical romance novels, and specifically Regency romance novels. Elizabeth Rotter is an American author of romance novels.  She has been published under the pseudonyms Elizabeth Walker, Elizabeth Neff Walker, and Laura Matthews.  As Laura Matthews, she has released more than 30 Regency romance novels.  Under her other pseudonyms, she writes mainstream women's fiction or contemporary romances, most of them revolving around people working at a hospital. According to Tatin Yang in the article "Romansang Pinoy: A day with Tagalog romance novels", Tagalog romance paperbacks were thin Philippine versions of romance novel books that could be found at the bottom shelves of the romance section of bookstores, wrapped and bound with book covers that are decorated with Philippine comics-styled illustrations, such as "a barrio landscape with a badly dressed guy and girl locked in an embrace".  As a form of "escapist fiction" (escapism) and "commercial literature", Tagalog romance novels generally follow a "strict romance formula", meaning the narratives have happy endings (a factor influencing the salability of the novel), the protagonists are wealthy, good-looking, smart, and characters that cannot die.  Normally, the hero or heroine of the story falls in love and "goes crazy" over the admired person.  However, later authors of Tagalog romance novels deviated from portraying so-called "damsel-in-distress and knight-in-shining-armor characters".  Contemporary writers also turned away from writing "rags-to-riches plots".  The stereotypical norm had been replaced by the incorporation of storylines with "interesting scenes, characters [who are ready to face challenges or to sacrifice themselves for the benefit of other people], dialogues, and new angles to old plots".  Authors such as Maria Teresa Cruz San Diego, who used the pen names Maia Jose and Tisha Nicole, ventured into the fantasy romance genre, and into topics that are related to politics, ecology, gender issues, prostitution, mail-order bride syndicates, white slavery, non-governmental organizations, and breastfeeding programs.  Apart from writing about ideal lovers (men and women) and ideal situations, other novelists wrote about true-to-life settings, or at least based the stories from personal experiences.  Thus, Tagalog romance novels came to mirror or replicate the "roles that women and men play" in Philippine society. Regency Buck is a novel written by Georgette Heyer.  It has three distinctions: it is the first of her novels to deal with the Regency period; it is one of only a few to combine both genres for which she was noted, the Regency romance and the mystery novel; and it is the only one of her Regency stories to feature Beau Brummell as an actual character, rather than as someone merely mentioned in passing.  The story is set in 1811-1812. Suzanne Enoch (born California) is an American author of best-selling contemporary and historical Regency romance novels. Regency romances are a subgenre of romance novels set during the period of the British Regency (1811–1820) or early 19th century.  Rather than simply being versions of contemporary romance stories transported to a historical setting, Regency romances are a distinct genre with their own plot and stylistic conventions.  These derive not so much from the 19th-century contemporary works of Jane Austen, but rather from Georgette Heyer, who wrote over two dozen novels set in the Regency starting in 1935 until her death in 1974, and from the fiction genre known as the novel of manners.  In particular, the more traditional Regencies feature a great deal of intelligent, fast-paced dialogue between the protagonists and very little explicit sex or discussion of sex. Carla Sue Kelly (born 1947) is a popular and acclaimed writer in the Regency romance genre.  She is the author of over forty books and short stories.  Her books are what romance readers call "keepers," i.e. books they keep in their private collections, and accordingly they can be hard to find.  Renowned for what she calls "dukeless" regencies, her stories often revolve around ordinary people solving their own problems.  However, her regencies only reflect a part of her writing interests.  She also has a strong interest in the American West, which is reflected in her earliest published works and in her non-fiction.  Since 2011, Kelly, who has a Mormon background, has written four historical romance novels that focus on the lives of young Mormon women: "Borrowed Light", "Enduring Light", "My Loving Vigil Keeping", and "Safe Passage".
Answer: Georgette Heyer