The Monster of Glamis
Main article: Monster of Glamis
The most famous legend connected with the castle is that of the Monster of Glamis, a hideously deformed child born to the family. Some accounts came from singer and composer Virginia Gabriel who stayed at the castle in 1870.[9] In the story, the monster was kept in the castle all his life and his suite of rooms bricked up after his death.[10][11][12][13] Another monster is supposed to have dwelt in Loch Calder near the castle.[citation needed]
An alternative version of the legend is that to every generation of the family a vampire child is born and is walled up in that room.[11]
There is an old story that guests staying at Glamis once hung towels from the windows of every room in a bid to find the bricked-up suite of the monster. When they looked at it from outside, several windows were apparently towel-less.[11]
The legend of the monster may have been inspired by the true story of the Ogilvies.[11][14][15]
https://en.wikipedia.org/wiki/Glamis_Castle
The Queen's Hidden Cousins Are Part of a Shameful Chapter in Royal History
The Crown Season Four revisits a painful part of Windsor family history.
By Adrienne Westenfeld
Nov 21, 2020
In Season Four, Episode Seven of The Crown, titled “The Heredity Principle,” creator Peter Morgan delves into a shocking Windsor family secret: the institutionalization and subsequent abandonment of two of the Queen’s first cousins, who, owing to their developmental disabilities, were shamefully hidden from the public and declared legally dead. When news of Katherine and Nerissa Bowes-Lyon broke in 1987, the royal family was engulfed in scandal, with the public outraged that the royals could treat their own flesh and blood with such callousness. Decades later, the Windsors would likely prefer to leave this shameful episode consigned to the ash heap of the past, but Morgan has dragged the skeletons out of the royal closet, excavating the Windsors’ shameful secret in a tender episode about family, faith, and mental illness.
The Queen’s cousins, Katherine and Nerissa Bowes-Lyon, who each had a mental age of about three years old and never learned to talk in their lifetimes, were the third and fifth daughters of John Herbert Bowes-Lyon, the Queen Mother’s brother, and his wife, Fenella Bowes-Lyon. In 1941, when Nerissa was 15 years old and Katherine was 22, they were sent from the family home in Scotland to Royal Earlswood Hospital at Redhill, Surrey, where they would live out the rest of their days.
https://www.esquire.com/entertainment/tv/a34728377/queen-elizabeth-cousins-katherine-nerissa-bowes-lyon-asylum-true-story-the-crown-season-4/