The Athanasian Creed—also called the Quicunque Vult, which is both its Latin name and its opening words, meaning "Whosoever wishes"—is a Christian statement of belief focused on Trinitarian doctrine a
Athanasius of Alexandria was traditionally thought to be the author of the Athanasian Creed, which is hence named after him
Detail of a 13th-century manuscript illustration for William Perault's Summa Vitiorum, depicting a knight carrying the "Shield of the Trinity"
The Shield of the Trinity or Scutum Fidei is a traditional Christian visual symbol which expresses many aspects of the doctrine of the Trinity, summarizing the first part of the Athanasian Creed in a
Athanasian Creed
…the official breviary approved for use in the personal ordinariates for former Anglicans. A common visualization of the first half of the Creed is the Shield of the Trinity…
The earliest attested version of the diagram, from a manuscript of Peter of Poitiers' writings, c. 1210
Petrus Alfonsi's early 12th-century Tetragrammaton-Trinity diagram, a probable precursor to the Shield of the Trinity
An 1833 reconstruction of the Agincourt banner of the Trinity