Lady Capulet is first seen in the play at the quarrel in the beginning, along with Lord Capulet. Later on, in scene three of act one, she, Nurse, and Juliet are all preparing for the Capulet ball that is to take place later that night. Lady Capulet tells Juliet that Paris is seeking her for her love, and asks if she can love him in return. Lady Capulet is very dedicated to making sure that Juliet is married, not seeming to show the same personal care towards Juliet like Nurse does.In Act 3, when Tybalt dies, Lady Capulet is very distraught, yelling many exclamations of her sorrow towards the death of her kinsman. She insists that Benvolio's story of what happened to Tybalt and Mercutio is biased because both he and Romeo are Montague's. Lady Capulet begs Prince Escallus for justice for what happened to Tybalt. (However, in Act 3: Scene 5, she scorns Juliet for crying so much over Tybalt's death, so it appears that she gets over it rather quickly.)
Lady Capulet, along with Lord Capulet, thinks that if Juliet is wed to Paris, that she will stop crying over Tybalt (when, in reality, she cries over Romeo). She is ignorant to Juliet's feelings yet again, unlike the Nurse.
We can see Lady Capulet in devastation once more when she sees Juliet, her only child, "dead" in her bed. Just like with Tybalt, she cries out many exclamations. We last see her in Act 5, scene 3, her last words being: O me! this sight of death is as a bell, that warns my old age to a sepulchre."
"A crutch, a crutch! why call you for a sword?" 1.1
"Marry, that 'marry' is the very theme I came to talk of. Tell me, daughter Juliet, jow stands your disposition to be married?" 1.3
"I was your mother much upon these years that you are now a maid. Thus then in brief: the valiant Paris seeks you for his love." 1.3
"Verona's summer hath not such a flower." 1.3
"Tybalt, my cousin! O my brother's child! O prince! O cousin! husband! O, the blood is spilt O my dear kinsman! Prince, as thou art true, for blood of ours, shed blood of Montague. O cousin, cousin!" 3.1
"I beg for justice, which thou, prince, must give; Romeo slew Tybalt, Romeo must not live." 3.1
"Well, girl, thou weep'st not so much for his death, as that the villain lives which slaughter'd him." 3.5
"O me, O me! My child, my only life, Revive, look up, or I will die with thee! Help, help! Call help." 4.5
"The people in the street cry Romeo, some Juliet, and some Paris; and all run, with open outcry toward our monument." 5.3