Saint Sava of Serbia was a prominent medieval figure, born in 1175 as Saint Sava in the region that is now Serbia. He was the youngest son of Stefan Nemanja, the founder of the Serbian state. Sava became a monk and later the first Archbishop of the Serbian Orthodox Church, playing a crucial role in establishing the church's independence and promoting education and culture. Sava is celebrated for his efforts in unifying the Serbian people and spreading Christianity. He is also known for founding the Monastery of Hilandar on Mount Athos, which became a significant center of Serbian spirituality. His legacy continues to influence Serbian identity and culture today.