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Bellona's festival was celebrated on June 3.
The name "Bellona" derived from the Latin word for "war" (bellum), and is directly related to the modern English words "belligerent" (lit., "war-waging"), "bellicose" and "antebellum". In earlier times she was called Duellona, the name being derived from a more ancient word for "battle".
In art, she is portrayed with a helmet, sword, spear, and torch.
Ammianus Marcellinus, in describing the Roman defeat at the Battle of Adrianople refers to "Bellona, blowing her mournful trumpet, was raging more fiercely than usual, to inflict disaster on the Romans".
In later culture 
Near the beginning of Shakespeare's Macbeth (I.ii.54), Macbeth is introduced as a violent and brave warrior when the Thane of Ross calls him "Bellona's bridegroom" (i.e. Mars). In Henry IV, Part I, Hotspur describes her as "the fire-eyed maid of smoky war" (IV.i.119). And in The Two Noble Kinsmen (1613), set in pre-Roman Athens, the sister of Hippolyta will solicit her divine aid for Theseus against Thebes (I.iii.13).
The goddess has also proved popular in post-Renaissance art as a female embodiment of military virtue, and an excellent opportunity to portray the feminine form in armour and helmet.
The composer Francesco Bianchi and the librettist Lorenzo da Ponte together created a Cantata first performed in London on 11 March 1797 & called Le nozze del Tamigi e Bellona, (The Wedding of the Thames and Bellona), to mark the British naval victory over the French at the Battle of Cape St Vincent.
Also, the "Temple of Bellona" was a popular choice of name for the small mock-temples that were a popular feature of eighteenth and nineteenth century English landscaped gardens (e.g. William Chambers's 1760 Temple of Bellona for Kew Gardens, a small Doric temple with a four-column facade to contain plaques honouring those who served in the Seven Years War of 1756–64).
The detective novel The Unpleasantness at the Bellona Club by Dorothy L Sayers is set at a fictional London club whose membership is composed of active or retired military officers, and is named after the goddess.
In the fantasy novel, The Son of Neptune, Bellona is the mother of two secondary characters, one is a Praetor in Camp Jupiter, the other has become the Amazon Queen.
Salis family (origin Grisons) crest, late nineteenth century version on an album cover.