People up to and including Wikipedia have been assuming that she married Sir Richard Reade, Lord Chancellor of Ireland - but apparently she did not. And neither was she his mother.
Agnes Reade, nee Hamby, wrote her will about 19 April 1537, describing herself as a "widow". She was dead herself by 8 May 1537. Sir Richard Reade, Lord Chancellor's dates were (c.) 1511-1575, so she certainly was not *his* widow.
She was the daughter of George Hamby and his first wife (probably Margaret Cutler), so must have been born early in the 1500s herself (c. 1500-1505), making it impossible for her to be the mother of Sir Richard Reade (and besides, his father supposedly survived to 1555).
Apparently, a Reade family in Lincolnshire had somehow become confused with the Reade family of Hampshire and Hertfordshire (easier to do when no one bothers to look at a map!)
Per some fairly extensive research, Agnes actually married a Richard Reade of Wrangle, Lincolnshire, a widower with three sons and a daughter (and none of those sons was a Richard): https://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=ann%...
Agnes and Richard *did* have a son Richard, but he wasn't the Lord Chancellor of Ireland - he was much too young, still underage when he was left a double orphan.
Agnes' will, found here https://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=ann%... enumerates her children and includes bequests to each of them, as well as to her (presdumably half-)sister Ann Dale.
1. Richard Reade b: ABT 1525
2. Andrew Reade b: ABT 1527
3. Francis Reade b: ABT 1529 in England
4. Robert Reade b: ABT 1531
5. Agnes Reade b: ABT 1533
6. Elizabeth Reade b: ABT 1535
Francis' daughter Elizabeth married her cousin Edward Hamby (grandson of George Hamby and second wife, probably Margaret Green).