538015376Herefrid/Hemfred is known only from two later charters involving his son and grandson. Of these charters, the earlier (made sometime between 1162 and 1165) shows his name as Herefrid,1 and the later (dated 12 June 1190) shows Hemfred.2 The charters strongly imply that 538015376Herefrid/Hemfred had owned property in Throwley.

The Domesday Book shows "Herfrid" as the lord of Throwley in 1086. It seems likely that this "Herfrid" may have been the father or grandfather of our 538015376Herefrid/Hemfred, but there isn't enough evidence to say for certain.

"Herfrid" in the Domesday Book. Full page.3

Sources Cited:

1: Archaeologia Cantiana, Volume IV (London, 1861), pages 210-211. See also: Daniel Haigneré, ed., Les Chartes de Saint-Bertin, Tome I: 648-1240 (Saint-Omer, 1886), page 112.

2: Daniel Haigneré, ed., Les Chartes de Saint-Bertin, Tome I: 648-1240 (Saint-Omer, 1886), page 161. See also: Archaeologia Cantiana, Volume IV (London, 1861), page 217.

3: The Domesday Book, Kent folio 19, <https://opendomesday.org/place/TQ9955/throwley/>.