*Pierre I Sire De Grandson
born Abt 1190 Neuchatel, Switzerland
died Btw 29 July 1259 & 1257 Dec 15

father:
*Ebal IV Sire De Grandson
born Abt 1154 Grandson, Waadt, Switzerland
died 26 Jan 1235 Aft

mother:
*Beatrix De Geneva
born Abt 1154 Geneva, Switzerland
died Aft 1235

siblings:
unknown

spouse:
*Agnes De Neuchatel
born Abt 1194 Neuchatel, Switzerland

children:
*William De Grandison
born Abt 1255/1264 Of Cassington, Oxfordshire, England
died 27 Jun 1335

biographical and/or anecdotal:

notes or source:
LDS