This is sort of like Halloween in April.
To my surprise, it already exists...........in Germany.
https://witchlike.wordpress.com/2018/04/29/walpurgis-night-halloween-in-april/
 | Walpurgis Night – Halloween in April? « witchlike I know, I know. All you ghost and goblin lovers feel neglected at this time of year. Horror aficionados begin lamenting as early as November. “Let’s plan for next Halloween!” they tell me. However, you don’t have to wait that long! There is a holiday going on right now to appease your ghastly self,… witchlike.wordpress.com |
https://en.wikipedia.org/wiki/Walpurgis_Night
 | Walpurgis Night - Wikipedia Walpurgis Night (/ v æ l ˈ p ʊər ɡ ɪ s, v ɑː l-,-ˈ p ɜːr-/), an abbreviation of Saint Walpurgis Night (from the German Sankt Walpurgisnacht [saŋkt valˈpʊʁɡɪsˌnaxt]), also known as Saint Walpurga's Eve (alternatively spelled Saint Walburga's Eve), is the eve of the Christian feast day of Saint Walpurga, an 8th-century abbess in Francia, and is celebrated on the night of 30 ... en.wikipedia.org |
https://en.wikipedia.org/wiki/Saint_Walpurga
Saint Walpurga or Walburga (Old English: Wealdburg, Latin: Valpurga, Walpurga, Walpurgis; c. AD 710 – 25 February 777 or 779), also spelled Valderburg or Guibor,[1] was an Anglo-Saxon missionary to the Frankish Empire. She was canonized on 1 May c. 870 by Pope Adrian II. Saint Walpurgis Night (or "Sankt Walpurgisnacht") is the name for the eve of her feast day, which coincides with May Day.
Walpurga was born in the county of Devon, England, into a local aristocratic family. She was the daughter of Saint Richard the Pilgrim, an underking of the West Saxons, and of Saint Wuna of Wessex, and had two brothers, Saint Willibald and Saint Winibald.[2]
| Saint Walpurga | |
|---|---|
 Painting by the Master of Meßkirch, c. 1535–40. | |
| Born | c. 710 Devon |
| Died | 25 February 777 or 779 Heidenheim (Mittelfranken) |
| Venerated in | Catholic Church Lutheran Churches Eastern Orthodox Church |
| Canonized | 870 by Adrian II |
| Feast | Various days |
| Patronage | Eichstätt, Antwerp, Zutphen and other towns |
Saint Walpurga or Walburga (Old English: Wealdburg, Latin: Valpurga, Walpurga, Walpurgis; c. AD 710 – 25 February 777 or 779), also spelled Valderburg or Guibor,[1] was an Anglo-Saxon missionary to the Frankish Empire. She was canonized on 1 May c. 870 by Pope Adrian II. Saint Walpurgis Night (or "Sankt Walpurgisnacht") is the name for the eve of her feast day, which coincides with May Day.