The feast of Saint Cecilia is celebrated on November 22nd in the Latin and Greek rite. There is no special title to her feast day, other than calling it such.
Saint Saens is the name of a French composer and not a Catholic saint. Therefore, there is no feast day.
There is no canonized saint in the Catholic saint by that name.
April 29 is the feast day of Saint Catherine of Siena, a patron saint of Italy.
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.
The 23rd of April is the feast day of Saint George.
Saint Helena's feast day is August 18.
The feast day of saint Mark is April 25.
November 22 is the feast day of Saint Cecilia.
August 11 is the feast day of Saint Philomena.