Question: When does the creator of Heaven Leigh Casteel died?

Context articles: The Roots of Heaven
Heaven Casteel
All Dogs Go to Heaven: The Series
Richard Leigh (cricketer)
Troy Tatterton
V. C. Andrews
Heaven (Andrews novel)
Samuel Leigh (bookseller)
Web of Dreams
Molly Leigh

The Roots of Heaven is a 1958 American adventure film in CinemaScope and DeLuxe Color made by 20th Century Fox, directed by John Huston and produced by Darryl F. Zanuck.
 The screenplay by Romain Gary and Patrick Leigh Fermor is based on Romain Gary's 1956 Prix Goncourt winning novel "The Roots of Heaven" ("Les racines du ciel").
Heaven Leigh Casteel is the protagonist of the novels in the Casteel series created by V. C. Andrews, and concluded by Andrew Neiderman after her death.
All Dogs Go to Heaven: The Series is an animated comedy television series which aired from 1996 to 1998 in syndication and on the Fox Family Channel from 1998 to 1999, with 40 half-hour episodes produced in total.
 The series was produced by Metro-Goldwyn-Mayer Animation, and was distributed by Claster Television (in the years 1996 and 1997) and MGM Worldwide Television Distribution in 1998; finally, its animation was by the studios Wang Film Productions and Thai Wang Film Production Co., Ltd..
 Don Bluth’s 1989 animated feature "All Dogs Go to Heaven" featured a selfish German Shepherd named Charlie who died, went to heaven, escaped back to Earth for vengeance on his murderer Carface and then found redemption with the help of a young orphaned girl named Anne-Marie.
 The film spawned a sequel, "All Dogs Go to Heaven 2" and this animated series takes place after these events.
Richard Leigh (born 7 February 1784 at Wilmington, near Dartford, Kent; died 9 October 1841 at Westminster) was an English amateur cricketer who was mainly associated with Surrey.
 He made five known appearances in first-class matches from 1806 to 1809.
 His father, also called Richard Leigh, was a well-known match promoter in the 1790s and there were nine first-class matches featuring R. Leigh's XI.
Troy Langdon Tatterton is a fictional character created by V. C. Andrews and continued by ghostwriter Andrew Neiderman in the bestselling novels in the "Casteel" series.
 Troy is the handsome and wealthy creator behind the inventions in the Tatterton Toy empire.
 He lives on the Farthingale estate in the cottage behind the maze.
Cleo Virginia Andrews (June 6, 1923 – December 19, 1986), better known as V. C. Andrews or Virginia C. Andrews, was an American novelist.
 She was born in Portsmouth, Virginia.
 Andrews died of breast cancer at the age of 63.
Heaven is the first book in the Casteel series by author V. C. Andrews.
 It is also the name of the main character Heaven Casteel, in the Casteel series.
Samuel Leigh was a bookseller and publisher in 19th century London.
 His office stood on the Strand.
 From around 1806 to 1814 he conducted business with James Mathews in the partnership of "Mathews and Leigh."
 He also married Mathews' daughter.
 Leigh died by his own hand in 1831.
Web of Dreams was written in 1990 by V. C. Andrews ghostwriter Andrew Neiderman.
 It is the fifth and final novel in The Casteel Series, and serves as a prequel to "Heaven".
 Told primarily from the viewpoint of Heaven Casteel's mother, Leigh VanVoreen, the novel explains her secrets and circumstances as a 13-year-old girl who was forced to flee her wealthy Boston home, resulting in her dying in childbirth and leaving her daughter Heaven to be raised motherless in the hills of the West Virginia mountains.
Molly Leigh (1685–1746) was an English woman who was accused of witchcraft, died before being tried, and had her grave disturbed following claims that she still haunted the town.
 The 20th-century witch Sybil Leek claimed to be a descendant of Leigh's, and took to keeping a crow, named Mr. Hotfoot Jackson, around with her, just as Leigh had done.