Bailivate

She granted him also the office of purveyor of the said manor of Eltham, together with the bailivate of the town of Eltham

Source: wiktionary

During his bailivate he ceases to be reckoned one of the approved men; but on the expiration of his year of office, he takes again among them the rank he held before.

Source: wiktionary

And the aforesaid merchants and likewise the aforesaid abbot and Thomas by their attorneys come, and the same merchants complain that the aforesaid Thomas, on Monday in the Eve of S. Martin in the 14th year of the reign of the now King, under colour of his bailivate and without warrant arrested cloths and other goods and merchandises of the aforesaid merchants in the fair of Westminster to the value of 500l.

Source: wiktionary