Bianca finds the handkerchief in Cassio's bedroom.
When Desdemona drops her handkerchief, her lady in waiting, Emilia, finds it and gives it to her husband, the conniving Iago, who wants it for reasons Emilia does not know.
Iago plants the handkerchief in Cassio's room so it appears that Cassio and Desdemona have been sleeping with one another. The purpose of this is to upset Othello so Iago can get his revenge on Othello for not promoting him.
Bianca finds the handkerchief in Cassio's room and accuses Cassio of sleeping with someone other than herself. Cassio truly does not know where the handkerchief came from and merely wishes for Bianca to copy the embroidery from the handkerchief.
When Othello finds out that Cassio has possession of the handkerchief, he is incensed.
To Othello, a lady's handkerchief is a token of her loyalty. To this Moor, led by blind passions, superstitions and misguidance, the possibility for a chance of a lady's handkerchief being misplaced or lost does not occure and even if it occurs, not acceptable. That is why this unimportant matter of a handkerchief becomes important to him.
A Witch, fortune teller
It gives Othello the ocular "proof" that he's looking for from Iago ever since his jealousy is sparked. Othello gave it to Desdemona once they began seeing each other and he believes that if she ever lost it that she would no longer be devoted to him. He knocks it out of her hand during an argument, Emilia picks it up and gives it to her husband Iago. He then places it in Cassio's room and he gives it to Bianca who then throws it back at Cassio (saying that she doesn't want the trifles of another woman) while Othello is watching him (just as Iago wanted) and Othello takes this as meaning that Desdemona gave the hankerchief to Cassio, Cassio gave to Bianca, and Bianca gave it back because she didn't want a token that was given to him from another woman.
We don't know who made it. An Egyptian sorcerer gave it to Othello's mother as a charm. Othello, in turn, gave it to Desdemona to insure her fidelity.
She didn't. She couldn't. Othello asked her to but she couldn't produce it. Why? because her maid Emilia had stolen it and given it to Iago, who is Emelia's husband.
othello
He sees Bianca try to return the handkerchief to Cassio.
Bianca has the handkerchief at the end of act three because Cassio wanted her to make a copy of it.
Othello
Bianca does; Cassio wanted her to make a copy and so gave it to her.
At the end of Act 3 in Shakespeare's Othello, the handkerchief is in Bianca's possession. She is a courtesan who receives it from Cassio. The handkerchief is significant because it was a gift from Othello to Desdemona and serves as a key plot point in the play as Iago uses it to manipulate Othello's emotions.
Emilia stole it for him.
Desdemonas father and one of the senators of venice.
desdemonas pity of othellos life struggles
Othello
Desdemona's handkerchief, given to her as a wedding present from Othello, is a symbol of something precious between Desdemona and Othello.
Iago brings Othello his handkerchief that Othello has given Desdemona and tells him it was in Cassio's house.