William De Vivonia
William was born about 1225 in Chewton, Somerset, England.

 Maud De Ferrers
Maud was born in 1230 in Ferrers, Derby, England.

 Joan De Vivonia
Joan was born about 1251 in Chewton, Somerset, England.  She died on June 1st, 1314.

 Sibyl De Vivonia
Sibyl was born about 1253.

 Mabel De Vivonia
Mabel was born about 1255.

 Cicely De Vivonia
Cicely was born about 1260 in Chewton, Somerset, England.  She died in 1320.