I see it is some time since the last OC cache was placed so I asked whether I could place another if I kept it simple and the CO kindly agreed.
The cache is not at the given co-ords but this might be a good place to prepare for your search.
You need to find what connects:
a revolutionary
a French departmental capital
a royal family
Michelangelo
A is the alphabetical value (A=1 Z=26) of the revolutionary, with B C & D being the same for the others. E is the value of the (plural) connector and F is the total of A to E.
The cache is hidden at N 55 02.F*2+C+E-7 W 002 07.F*2+E-A+2