Briand Signeur de CHATEAUBRIAND

Briand Signeur was born in 1215.¹   Briand Signeur's father was Godefroy V Signeur de CHATEAUBRIAND and his mother was Belle Assez de THOUARS.  His paternal grandfather was Godefroy IV de CHATEAUBRIAND.  He was an only child.  He died at the age of 70 in 1285.¹ 

They had a son named Godefroy VI Baron.