How many Saints were present at the crucifixion?

The answer depends on which gospel you prefer to use. The synoptic gospels say that no one of Jesus' acquaintance was present at the crucifixion itself, but women watched from afar, with Luke leaving open the possibility that some of the disciples were with those women watching from a distance.

Mark's Gospel is clear in that none of the disciples was at the crucifixion. Women looked on, but only from afar off: among them, Mary. Since this was the earliest of the gospels, and the other New Testament Gospels used it as their major sources for information on the life of Jesus, Mark ought to be the most accurate gospel.

Matthew's Gospel also says only that women looked from afar off: among them, Mary and Mary Magdalene.

Luke's Gospel says that those of his acquaintance stood afar off with the women.

The Gospel According to St John is the only gospel to place anyone among Jesus' family and followers at the crucifixion itself. It says that the mother of Jesus, her sister (also called Mary) and Mary Magdalene stood by the cross with the disciple whom he loved. Nowhere is the disciple whom Jesus loved identified, but Christian tradition holds him to be the apostle John