P
O
http://iconclass.org/11H%28ISIDORE%2911%28%2B5%29
the peasant Isidore the Labourer (Agricola) of Madrid; possible attributes: agricultural implements, e.g.: plough, sickle - male saint as patron, protector, intercessor (+ donor(s), supplicant(s), whether or not with patron saint(s))