Question: Other than Valerie Bowman, who else wrote Regency romance novels? 
Sentence (from "Regency romance"): 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.
Relevant evidence: Yes