Saint John Eudes, was a French missionary and priest, who founded the Congregation of Jesus and Mary and the Sisters of Our Lady of Charity of the Refuge, and was the author of the propers for the Mass and Divine Office of the Sacred Hearts of Jesus and Mary.
Saint Helena was the Empress Mother of Constantine the Great under whose patronage many churches in Rome and in the Holy Land, including the Church of the Holy Sepulcher and the Church of the Nativity were built. On a pilgrimage to the Holy Land, Helena discovered the True Cross. Patroness of Archaeologists
Saint Mamas (2nd c.) is ranked by the Greeks among the great martyrs. Born in prison to parents who had been jailed because they were Christian, Mamas became an orphan when his parents were executed. After his parents' death, Mamas was raised by a rich widow named Ammia, who died when he was 15 years old.
Saint Stephen the Great (977-1038), was the son of the Magyar chieftain Geza, Stephen succeeded him as leader in 997. Already raised a Christian, in 996 he wed the daughter of Duke Henry II of Bavaria and devoted much of his reign to the promotion of the Christian faith.
August 15 is the day that Catholics have long celebrated what is called the Dormition (falling asleep) or Assumption of the Virgin Mary. The Feast of the Assumption celebrates both the happy departure of Mary from this life by her natural death, and her assumption bodily into heaven. Along with the Feast of the Immaculate Conception (December 8th) the Assumption is a principal feast of the Blessed Virgin and a Holy Day of Obligation -- one of the most important feasts of the Church year.
Saint Maximilian Kolbe was a Polish Conventual Franciscan friar who volunteered to die in place of a stranger in the Nazi concentration camp of Auschwitz in Poland.
Pope Saint Pontian who reigned from 230-235 holds the distinction of being the first pontiff to abdicate. Perhaps a Roman by birth, he was elected to succeed St. Urban I and devoted much of his reign to upholding the condemnation of the heretical aspects of Origenism and struggled against the schismatic movement which supported the antipope St. Hippolytus.
Saint Euplius is venerated as a martyr and saint by the Catholic Church. With Saint Agatha, he is a co-patron of Catania in Sicily.
Saint Clare of Assisi was one of the first followers of Saint Francis of Assisi. She founded the Order of Saint Clare, commonly referred to today as the Poor Clares.
Saint Lawrence, Deacon and Martyr, was one of the victims of the persecution of Valerian in 258. He is one of the most celebrated Martyrs of the Church.