June Sylvia Thimblethorpe was born in 1926 in London, England. Educated in London at a school in Brondesbury, Kilburn High School for Girls, Slade School of Fine Arts, and University College. She worked as secretary from 1949 to 1952 and later she worked as school teacher.
As Sylvia Thorpe, she wrote over 25 historical romance novels from 1950 to 1983. Her novel "The Scapegrace" (1971) won the Elizabeth Goudge Historical Award. She was the third elected Chairman (1965-1967) of the Romantic Novelists' Association, and was named a Honor Life Member of the organization.
Sylvia is now a trustee for the Goodrich Village Hall Trust. Goodrich is a village, in south Herefordshire which is very close to Gloucestershire and the Forest of Dean situated near the River Wye and is famous for its old red sandstone Norman and medieval castle.