+--John Drake 
Bernard Drake  (1530-10 APR 1586)
|        +--Thomas Granville 
|     +--Thomas Grenville  (ABT. 1449-18 MAR 1512/13)
|     |  +--Elizabeth Gorges 
|  +--Roger Grenville  (1477-7 JUL 1524)
|  |  |  +--Otho "Otes" Gilbert 
|  |  +--Isabella Gilbert  (ABT. 1456-)
|  |     +--Elizabeth Hill 
+--Anne "Amye" Granville  (1513-18 FEB 1576/77)
   |  +--Richard Whitleigh  (ABT. 1449-)
   +--Margaret Whitleigh  (ABT. 1478-)
      |  +--John Trenowth 
      +--Margaret Trenowth  (ABT. 1460-)
         +--Honour Tregarthin  (ABT. 1432-)