I-Y33765, it's association with the English last name Clement

In June 2020 a gentleman with the surname Clement, now living in New Zealand but with eighteenth century direct male ancestry from the parish of Chew Magna, Somerset, was found to be Y33765 positive after testing that SNP at YSeq, Berlin, FRG. We do not know the genealogical relationship between this Somerset Clement family and the Compton Greenfield lineage but we are currently testing the New Zealand chaps Y-DNA using the Big Y-700 test at FamilyTree DNA, Houston, USA. 

A comparison of his 111STR results (IN82043) with those for the two Clement men with Gloucestershire ancestry (236748, 282009) show there is a genetic distance of 5 between the two English branches.  In the table below these STR results have been compared using the FTDNA TiP calculator to estimate the probabilities of a shared direct male ancestor.    With a probability >99% the estimated date for the divergence of the Gloucestershire and Somersetshire branches of the Clement male lineage is 400-600ybp (1600-1400AD).

Years before present	% probability IN82043 shares a direct male ancestor with 236748	% probability IN82043 shares a direct male ancestor with 282009
100 200 300 400 500 600	25.64 77.01 95.92 99.47 99.94 99.99	44.6 88.58 98.52 99.85 99.99 100

The earliest surviving example of Clement being used as an hereditary family name in south Gloucestershire and north Somerset occurs in a deed for property in the parish of Bedminster,  Somerset dated 1303 (Bristol Record Office, P.St MR/5163/43).   The document is a grant by William Fellard to Edward le Crokare, of a tenement opposite the churchyard of St Mary of Redeclyue which is witnessed by one, John Clement.  In the thirteenth and fourteenth century St Mary Redcliff and most of the parish of Bedminster lay outside the walls of Bristol, south of the River Avon.  Based on this documentary evidence and the 111 STR comparisons it would seem reasonable to consider that Clement had been used as an hereditary family name in north Somerset for at least one or two centuries before the estimated divergence of the Gloucestershire and Somersetshire branches circa 1500.

 I-Y33765 ancestral locations in the environs of Bristol (red symbols).  The blue circles indicate manors recorded as being owned by "the Dane" in 1066 as recorded in the Domesday book.