Othello was a Moorish general in the service of _____ in Shakespeare’s Othello.

Othello, in full Othello, the Moor of Venice, tragedy in five acts by William Shakespeare, written in 1603–04 and published in 1622 in a quarto edition from a transcript of an authorial manuscript.

Making use of a handkerchief belonging to Desdemona and found by Emilia when Othello has unwittingly dropped it, Iago persuades Othello that Desdemona has given the handkerchief to Cassio as a love token. Iago also induces Othello to eavesdrop on a conversation between himself and Cassio that is in fact about Cassio’s mistress, Bianca, but which Othello is led to believe concerns Cassio’s infatuation with Desdemona.

Othello, a Moorish general in the service of Venice in Shakespeare’s Othello. Driven by jealousy that has been skillfully manipulated, Othello takes the life of Desdemona, his doting wife, and then his own.

Source: britannica.com