He was born between 1014 and 1028 - the actual date is unknown.
The Pope you are probably looking for is Pope Saint Gregory I ("the Great") (c 540-604) who became pope in 590.
There have been a total of sixteen (16) popes named Gregory. Gregory I, 590-604, the second pope (of the total of three) to be called 'The Great.' The last Gregory was Gregory XVI, 1831-1846.
Pope Gregory I, also known as Gregory the Great, lived in Rome, Italy during the 6th century. He served as the Bishop of Rome from 590 to 604 AD.
Three Popes have had "the Great" appended to their names: Pope St. Leo I (reigned 440-61), Pope St. Gregory I (590-604), and Pope St. Nicholas I (858-67). 'The Great' is not an official title of the Church but was added by popular acclamation.
Gregory The Great was born in September 3, c.590 and died on march 12, 604. He was a pope from 3 September intill his death. He is considered a saint in the Roman Catholic Church.
Pope Pelagius II died in 590.
Pope Pelagius II reigned from 579 until 590.
Pope Benjamin I of Alexandria was born in 590.
Saint Gregory the Great was a pope who served from 590 to 604 AD. He is known for his contributions to liturgical music and for strengthening the authority of the papacy. He is also recognized as a Doctor of the Church for his theological writings.
Most of the chants were created during the Early Middle Ages. The best known chants today are the Gregorian chants, which were compiled according to the wishes of Pope Gregory I, who was pope from 590 to 604. The consensus of musicologists may be that the chants date from after the year 300. I have seen some disagreement on this, and there have been some important authors who have expressed the view that they were much older than that.
Excluding the two numbers themselves, they are 592, 594, 596, 598, 600, 602, 604, 606 and 608.