In the year 970.
The exact date is unknown. He was born in the year 970.
1989
In the year 1020.
In the year 1020.
In the year 1002 or 1003.
In the year 985.
In the year 1002 or 1003.
In the year 1002 or 1003.
In the year 1002 or 1003.
In the year 1002 or 1003.
In the year 1002 or 1003.