If you are referring to St. Anthony of Padua his father was Vicente Martins de Bulhoes and Mother Teresa Pais Taveira. Anthony never married nor had any children.
There are several saints named Anthony so you need to be specific. However, most of the Anthonys received their name from either their parents or from the religious order they belonged to,
Saint Anthony of Padua, also known as Saint Anthony of Lisbon, was born to a noble family in Lisbon, Portugal. His parents were Martin Boullion and Mary Teresa. They raised him in a Christian environment, which greatly influenced his spiritual development and later vocation as a Franciscan friar.
Anthony of Padua, Anthony of Egypt, Anthony Marie Claret are three. There are others.
The names of Saint Barnabas' parents in unknown. Saint Barnabas was one the twelve apostles as so named in the Book of Acts.
There is no saint named Clomba.
There is no saint named Clomuba.
Which Saint Elizabeth? There are several.
The names of Monica's parents are not known.
Of course she had parents. That is how biology works.
We do not know the names of Saint Lucy's parents.
We know very little about the life of Saint Valentine of Rome, including the names of his parents.
We have no record of the names of the parents of Juan Diego.