In Elizabethan times, a person's social position was very important. Someone of a lower rank could not marry a person of a higher rank.
Which set of lines from act I, scene V, of Shakespeare's Twelfth Night shows Olivia's interest in Cesario's (Viola's) social rank when Viola tries to woo Olivia on Orsino's behalf?
OLIVIA: Get you to your lord;
I cannot love him: let him send no more;
Unless, perchance, you come to me again,
To tell me how he takes it. Fare you well:
I thank you for your pains: spend this for me.
VIOLA: I am no fee'd post, lady; keep your purse;
My master, not myself, lacks recompense.
Love make his heart of flint that you shall love;
And let your fervour, like my master's, be
Placed in contempt! Farewell, fair cruelty.
[Exit.]
OLIVIA: What is your parentage?
'Above my fortunes, yet my state is well:
I am a gentleman.'—I'll be sworn thou art;
Thy tongue, thy face, thy limbs, actions, and spirit,
Do give thee five-fold blazon. Not too fast:—soft, soft!
Unless the master were the man.—How now?
Even so quickly may one catch the plague?
Methinks I feel this youth's perfections
With an invisible and subtle stealth
To creep in at mine eyes. Well, let it be.—

The set of lines from Act I, Scene V of Shakespeare's "Twelve Night" that shows Olivia's interest in Cesario's (Viola's) social rank when Viola tries to woo Olivia on Orsino's behalf are "What is your parentage? 'Above my fortunes, yet my state is well: I am a gentleman.' -I'll be sworn thou art." Olivia asks Cesario about his social position, she is seeing him as interesting and then finds out she is falling in love with him. In Elizabethan times, a person's social position was very important. Someone of a lower rank could not marry a person of a higher rank. Olivia is a beautiful lady of noble birth so she has to consider very carefully whom she marries to.