Saint Willibrord was an English missionary born around 658 AD, known for his efforts to spread Christianity in the region that is now the Netherlands. He became the first bishop of Utrecht and played a significant role in converting the Frisians to Christianity. Willibrord was a key figure in the early medieval church and is often referred to as the "Apostle of the Frisians." He founded several churches and monasteries, helping to establish a strong Christian presence in the area. Saint Willibrord is celebrated for his dedication and missionary work, and his feast day is observed on November 7th in the Christian calendar.