Saint Eligius – Saint Eligius (also Eloy, Eloi or Loye; French: Éloi; 11 June 588 – 1 December 660 AD) is the patron saint of goldsmiths, other metalworkers, and coin collectors. He is also the patron saint of veterinarians, the Royal Electrical and Mechanical Engineers (REME), a corps of the British Army, but he is best known for being the patron saint of horses and those who work with them. Eligius was chief counsellor to Dagobert I, Merovingian king of France. Appointed the bishop of Noyon-Tournai three years after the king’s death in 642, Eligius worked for twenty years to convert the pagan population of Flanders to Christianity.

Saint Eligius – Wikipedia

https://en.wikipedia.org/wiki/Saint_Eligius