Okay I was able to verify part of the missing pieces on Wikipedia now all I need is verify the connection:
A1. Anne St.Leger, + 1526, Md., Sir George Manners, 11th Baron de Ros of Helmsley, * c. 1470, + 1513.
- B1. Thomas Manners, 1st Earl of Rutland (1525), 12th Baron de Ros of Helmsley, K.G., P.C., * before 1492, + 1543, Md.1) 1513, Elizabeth Lovell, + 1513, d. of Sir Robert Lovell; Md.2), Eleanor Paston, + 1551, d. of Sir William Paston, of Paston, Norfolk.
-- C2. John Manners, Hon. Sir, + 1611, Md., Dorothy Vernon, + 1584, d. of Sir Geroge Vernon, of Nether Haddon (he was known as the “King of the Peak”).
--- D1. George Manners, Sir, * c. 1570, + 1623, Md. 1593, Grace Pierrepont, d. of Sir Henry Pierrepont, of Holme-Pierrepont,
and I have my connection, which is the same as on http://www.william1.co.uk/4.html