Historical presence of surnames / DE STEFFANI

Surname is on one of the documents of the decade and is attributed to the nominee of the document.

Surname might be present also with the following variants:
DE STEFANI
1870
Elements Residence
3 UDINE
1 TRIESTE
1880
Elements Residence
1 FLAIBANO
1 TRASAGHIS
1890
Elements Residence
1 TRIESTE