Pierre I Sire de GRANDSON
Pierre I Sire de was born in 1190 in Neuchatel NE, Switzerland.  He died at the age of 68 in 1258.

 Agnes  NEUCHATEL
Agnes  was born about 1194 in Neuchatel , NE Switzerland.  Agnes  is no longer alive.

 Amadeus de GRANDISON
Amadeus de was born in 1229 in Neuchatel, NE, Switzerland.  He died at the age of 71 in 1300.