See also :
Visitation of Staffordshire, 1614 & 1663/4, p 63; 
Visitation of Northamptonshire 1564 & 1618-19, p 6, p 170; 
Visitation of Rutland, 1618-1619, p 48; 
Visitation of Oxfordshire 1566, 1574, 1634, p 209; 
Visitation of Bedfordshire 1566, 1582, 1634, p 66; 
Visitation of Huntingdonshire, 1613, p 114; 
Visitation of Bucks, 1634, p 17.  
That lot should get you back to William Brudenell & his wife Anne Grove in the 14th century.