n. Saint Melchior, or Melichior, was purportedly one of the Biblical Magi along with Caspar and Balthazar who visited the infant Jesus after he was born. Melchior was often referred to as the oldest member of the Magi. He was traditionally called the King of Persia and brought the gift of gold to Jesus.

n. Denis of Paris;Saint Denis was a legendary 3rd-century Christian martyr and saint. According to his hagiographies, he was bishop of Paris in the third century and, together with his companions Rusticus and Eleutherius, was martyred for his faith by decapitation.

n. a French philosopher, mathematician, and scientist. Dubbed the father of modern western philosophy, much of subsequent Western philosophy. In his natural philosophy, he differed from the schools on two major points: first, he rejected the splitting of corporeal substance into matter and form; second, he rejected any appeal to final ends, divine or natural, in explaining natural phenomena. In his theology, he insists on the absolute freedom of God's act of creation.

n. an English philosopher, statesman, scientist, jurist, orator, and author. Bacon has been called the father of empiricism. His works argued for the possibility of scientific knowledge based only upon inductive reasoning and careful observation of events in nature. Most importantly, he argued this could be achieved by use of a sceptical and methodical approach whereby scientists aim to avoid misleading themselves.

n. an Italian Dominican friar, Catholic priest, and Doctor of the Church. He was an immensely influential philosopher, theologian, and jurist in the tradition of scholasticism, within which he is also known as the Doctor Angelicus and the Doctor Communis.

n. an ancient Greek philosopher and scientist born in the city of Stagira, Chalkidiki, in the north of Classical Greece. Along with Plato, Aristotle is considered the "Father of Western Philosophy"

n. served as Pope from 27 November 399 to his death in 401.