well no the th century means the years of and not the s and as i said before the most contemporary picture should be chosen due it being the most valid there is a picture fresco of st francis in subiaco which is contemporary in terms of life time his time of refuge there which would be even better other than that i can only recommend to use the most contemporary picture of any saint for any saint instead of a 'hundred years' later imaginary projection a good example would be st ambrose on wiki thus my vote goes to st francis and scenes from his life th century bardi or the fresco at from subiaco thats my two sesterces