The Holy Inquisition it was created in Europe in 1233, by Pope Gregory IX.
The heraldry emblem of the Inquisition was the Green Cross.
In Madrid we have a street named "the Green Cross street" to memory of the Inquisition.
The motto of the inquisition was:"Exurge, Domine, et judica causa tuam"
In many cities in Spain there is still a "square of the green cross", where the inquisition performed the "autos de fe":
At two o'clock in the evening the procession of the Green Cross began, accompanied by the emblem of the Holy Office, which was carried by an very important person.
https://paseosmadrid.com/plaza-de-la-cruz-verde-y-la-inquisicion/.
The cross of San Lazarus is different, and it is similar to the malt cross but in green. The green cross of the inquisition in Spain was a greek green cross.
I agree that the figure can be a free recreation of that old dark times.
