SC 11/224 Cheltenham rent roll. c1470?

SC 11/224 Cheltenham rent roll

Judging by the several name changes, this is a few years later than SC 11/216.  The change from Maurice Berkeley to Sir Edward Berkeley (last page) might narrow it down. Does not include base tenants – these appear in SC 11/226 (in the same hand).  Last page suggests that one Dobyns kept the books: was he bailiff or steward?  Estimated date: 1470