The patron saints for impossible (hopeless) causes are:
Jude Thaddeus
Gregory Thaumaturgus
Philomena
Rita of Cascia
There are no patrons of hearing but there are patrons against deafness:Cadoc of LlancarvanDrogoFrancis de SalesMeriadocOuen
The patrons of mathematicians are Saint Barbara and Saint Hubert of Liege.
Patrons of altar serversJohn BerchmansTarsicius
There are patrons of families:Francis of AssisiJosephMaximillian Kolbe
Saint Columba, one of the patrons of Ireland, is the patron of Derry.
The patrons of the Netherlands are:Bavo of GhentPlechelmWillibrord of Echternac
Valdemar is not a saint. The patron saints of Denmark are Saint Ansgar and Saint Knud.
There is no patron saint of entertainment. However, there are patrons of actors, actresses and musicians.
No. No patrons are assigned to any mythical creature.
patrons of AlgeriaCyprian of CarthageOur Lady of Africa
There are several patrons of food servers but the best known is St. Martha.
There is no patron saint of MS. However, St. Dymphna and St. Bartholomew are the patrons against neurological diseases, which would include MS.