PIERRE I SIGNEUR de GRANDSON
PIERRE I SIGNEUR was born about 1190 in Neuchatel, Ne, Switzerland.¹   He died about 1257.¹ 

 AGNES de NEUCHATEL
AGNES was born about 1194 in Neuchatel, Ne, Switzerland.¹ 

 AMADEUS SIGNEUR de GRANDSON
He died in 1300.¹