Atpatruus
Defined in 3 dictionaries — Black's (1910), Black's (1891), Burrill (1850)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
The brother of a greatgrandfather's grandfather.
A Dictionary of Law
Henry Campbell Black · 1891
The brother of a greatgrandfather's grandfather.
A New Law Dictionary and Glossary
Alexander M. Burrill · 1850
Lat. A great grandfather's grandfather's brother, {atavi frater}; called by Bracton atpatruus magnus. Bract. fol. 68 b.