Traditionally his feast is April 25th, though in several (rare) churches, it is celebrated on September 27th.
The feast day of saint Mark is April 25.
April 25April 25 is the feast of St. Mark.
Pope Benedict I is not a saint and has no feast day.
Saint Maria Goretti's Feast Day is July 6th.
Saint Christopher's feast day is July 25th.
Saint Laura's Feast Day is October the 19th.
Saint Helena's feast day is August 18.
July 24 is the feast day of Saint Charbel.
August 11 is the feast day of Saint Philomena.
November 22 is the feast day of Saint Cecilia.
The 23rd of April is the feast day of Saint George.
The feast day of Saint Apollonia of Alexandria is on February 9.