Dear Mr. Skoropowski,
In reply to your inquiry concerning the origin and meaning of the Skorupowski surname, I explain you as follows:
Indeed, the surname Skorupowski occurs in Poland very rare. At present it is born by only 31 people and all of them reside in Mazowsze (Masovia), the historical region in central Poland.
The surname came probably from the name of the village Skorupy (now called Grabowo-Skorupki) in the Ostroleka province (to the north east of Warszawa (Warsaw). In the past, this village was dwelled by yeomanry.
The surname could also originate from the nickname Skorupa and the latter from the Polish common noun skorupa 'shell, crust'. Such a surname (of a man called Jan Skorupa, borne in the village Mogila near Krakow, in south Poland) was first recorded in the year 1451. The surname Skorupa must have changed than into the form Skorupowski, following the patterns of a lot of Polish surnames ending in –ski, -owski, -inski, that are characteristic for surnames coming from place names.
Dr El¿bieta Supranowicz