Sadly they seldom give any background. I suspect it was all a bit like the fights in Asterix. Glasgow must have been a lively place in the 16th century.

Andersone, Steyne, wrangis.

Marione Jamesone, Jonet Maxuell, Marione Maxuell and Jonet Maxuell, hir dochteris, ar fund in the wrang and amerchiament of court for trublance done be thame to Marione Stene, spous to James Andersone, carter, in stryking of hir, scartyng of hir and dynging hir to the erd, vpone the last daye of Marche; and the said Marione is fund in the wrang, for stryking of Jonet Maxuell, yonger; and als the said James Andersone is fund in the wrang for stryking of Jonet Maxuell, spous to George Wilsoun; and siclik, the said George is fund in the wrang for invadyng of the said James with ane drawin quhyngar, and dwme gevin thairupone.

Craig, wrang.

The quhilk daye, Thomas Craig, cordiner, is fund in the wrang for non-comperance; and als for the transportyng of the gallows at his awin hand furtht of the auld accustomat place sa neir hand the towne; and is ordanit to repone the samyn agane.

I think perhaps the "gallows" was either a crane or a weighing machine. This and much more at British History Online. generally, in these extracts, the "mercat" is the market, rather than a photogenic social beastie.