The presence of so many armedguardson the day of the execution was to ensure that there are no problem ensued on the day of the execution.
Louis being the king, means he is a very paramount figure and the plans made by his cronies aren't known.
The presence of 200mounted <em>guards</em> and 1200<em>foot soldiers</em> means that, they were prepared for any move which might have been made to disruptproceeding.
Hence, the presence of so many guards was to ensure decorum and avoid disruption of the execution process.
