His dates of birth and death have been given as 1239 and about 1312; these are probably too early; he may have been born towards 1260, and may have died in or about 1333.
The estimated years of birth and demise for this individual are 1239 and approximately 1312; these figures seem to be too early; the person may have been born around 1260, and passed away between 1333 and 1335.