The patron saints of youth do not include Saint Mark:
Aloysius Gonzaga
Gabriel of the Sorrowful Mother
John Berchmans
John Bosco
Maria Goretti
Pedro Calungsod
Philomena
Raphael the Archangel
Stanislaus Kostka
Teresa of the Andes
Valentine of Rome
Saint Mark is one of the patron saints of Venice.
St. Mark the Evangelist is the patron saint of Egypt.
There is no patron saint of tigers. However, St. Francis of Assisi is the patron saint of animals and Saint Mark the Evangelist is the patron saint of lions. Information from the Patron Saint Index.
The patron saint of prisoners and lawyers is St. Mark. He is also credited as the author of one of the four gospels.
The Feast of Saint Mark falls on April 25th in Italy. Saint Mark was one of the 12 disciples, and there is a belief that his relics were archived in Venice, Italy. This spiritual connection made him the patron Saint of Italy.
A patron saint of notaries is St. Matthew the Apostle.
St Mark
If you are referring to Cleopatra of Mark Anthony and Julius Caesar fame, she was never a Christian. However, there was a Saint Cleopatra who was a 4th century martyr. She is not a patron saint.
The patron saint of lions is St. Mark the Evangelist.
There is no patron saint of legal issues. However their is a patron of lawsuits and that is St. Agia. Patron saints of lawyers •Catherine of Alexandria •Genesius •Ivo of Kermartin •Mark the Evangelist •Raymond of Penyafort •Thomas More
The patron saints of Venice, Italy, are St. George and St. Mark the Evangelist.
He is a patron saint of Venice and his purported relics are buried in the basilica that is named for him in that city. Other than that, he has no connection with Venice.