British Parliamentary Papers and Other British Government Documents

The earliest records of parliament, up to the sixteenth century, are known as the Rolls of Parliament. University of Georgia Libraries has the following:

Great Britain. Parliament. Rotuli Parliamentorum; ut et Petitiones, et Placita in Parliamento.
Making of the Modern World (GALILEO); MAGIL, closed stacks (J301 .H12); also Basement (Film HC10 .G655 no.10277.6).

This set covers the reigns of Edward I through Henry VII (1278-1503) and includes an index.