Which 1461 battle featured the parhelion omen called three suns?

The Battle of Mortimer’s Cross in 1461 featured the famous parhelion omen known as the three suns. A parhelion is an atmospheric effect in which bright patches appear beside the sun, usually caused by sunlight passing through ice crystals in high clouds.

The phenomenon was seen before the battle by Edward, Earl of March, the Yorkist commander and future Edward IV. He interpreted the three apparent suns as a sign of the Holy Trinity and used the image to encourage his troops. The symbol became associated with Edward’s victory and later with the heraldic device called the sun in splendour.

Mortimer’s Cross was fought on 2 February 1461 in Herefordshire. Edward defeated a Lancastrian army commanded by Owen Tudor and his son Jasper Tudor. It was a crucial Yorkist victory, although the wider conflict continued and the decisive Battle of Towton followed soon afterward.