A common name for a court fool; Henry VII and Henry VIII both had fools called 'Pach'. In the Life of Robin Goodfellow, Pach seems to perform the function of a censor of housewifery and care of the stock rather than Court Jester:

About mid-night do I walke, and for the trickes I play they call me Pach. When I find a slut asleepe, I smuch her face if it be cleane; but if it be durty, I wash it in the next pissepot that I can finde: the balls I use to wash such sluts withal is a sows pancake, or a pilgrimes salve.
Those that I find with their heads nitty and scabby, for want of combing, I am their barbers, and cut their hayre as close as an apes tayle; or else clap so much pitch on it, that they must cut it off themselves to their great shame. Slovens also that neglect their master's businesse, they doe not escape. Some I find that spoyle their master's horses for want of currying: those I doe daube with grease and soote, and they are faine to curry themselves ere they can get cleane. Others that for laysinesse will give the poor beasts no meate, I oftentimes so punish them with blowes, that they cannot feed themselves they are so sore.

He adds sanctimoniously in his final verse:

Thus many trickes, I, Pach, can doe,

But to the good I ne'ere was foe:

The bad I hate and will doe ever,

Till they from ill themselves doe sever.

To help the good Ile run and goe,

The bad no good from me shall know.