The following are memorialized on October 11:
Agilbert of Paris
Alexander Sauli
Anastasius V
Andronicus
Ansillo
Bruno the Great
Canice
Ethelburgh of Barking
Firminus of Uzes
Germanus of Besancon
Gratus of Oloron
Gummarus
James Grissinger
John of Bridlington
John XXIII
Juliana of Pavilly
Kenneth
Maria Soledad Torres Acosta
Maternity of the Blessed Virgin Mary
Nectarius
Peter Tuy
Placid
Sarmata
Tharacus
With the majority of saints, particularly very ancient saints, there is no record of the birth dates. The only date that is recorded is the feast day of the saint which may be the anniversary of the death of the person when the person was reborn into heaven. Therefore, this question can not be answered.
The feasts day of St. Canice, also known as Kenny, Ken or Kenneth, is on October 11.
There is no special reason for the date. Frequently the feast date commemorates the anniversary of the death of a person. However, this custom was not followed in the case of Blessed John XXIII. Only the Sacred Congregation for the Causes of Saints knows why that particular date was chosen.
There are about 2 dozen saints named Martin so you need to be specific. Here are the feast days of two Martins:St. Martin de Porres - November 3St. Martin of Tours - November 11
Philomena's feast day is August 11
Her feast day is on August 11!
St. Paula Frasinetti's feast day is on June 11.
August 11 is the feast day of Saint Philomena.
The feast of Benedict is July 11.
November 11 is the feast of Martin of Tours.
The feast day of St. Gobnait (Irish for 'Abigail') is February 11.
Colombia January 12 Feast of the Ephyfany March 19 Saint Joseph's Day April 5 Holy Thursday April 6 Holy Friday May 9 Work Day May 21 The Ascencion Day June 11 Corpus Christi June 18 Feast of the Sacred Heart July 2 Saint Peter and Saint Paul July 20 Colombia Independence Day August 7 Boyacá Batle August 20 feast of the Assumption October 15 Race Day November 5 All Saints Day December 8 Feast of the Inmaculate Conception