He married Mary Young in 1695 in King and Queen County, Virginia.
He died Dec. 10, 1726, in North Farnham Parish, Richmond County, Virginia.
According to the website cited above, there were two Richard Lees born to William Lee and Alice Felton, one in 1677, the other in 1684. The date of death above is given for the second Richard Lee.
If the second Richard Lee had married Mary Young in 1695 (when she was fifteen or sixteen), he would have been ten or eleven years old at the time, which seems unlikely.
If there was only one Richard Lee, born 1677, died 1726 (at about age forty-nine), he would have been about eighteen at the time of his marriage.