Virginity is considered extremely important for both female and family honor. The best example of this is the deception that Angela Vicario engages in when she marries Bayardo. Angela wear the veil and orange blossoms that signify purity, even though she is not a virgin. She then listens to her friends and tries to trick Bayardo on their wedding night.
The lengths she is willing to go to show that she is a virgin, combined with her friends' knowledge of the issue and willingness to advise her to lie, show the social significance of virginity in Chronicle of a Death Foretold.