Make this text less complex: It is found in southern Europe and is fully surrounded by Italy (this is called an " enclave ", and only the Vatican City, Lesotho and San Marino are like this).
San Marino is an enclave (landlocked) surrounded by Italy in Southern Europe, on the border between the " regioni " of Emilia Romagna and Marche and about 10 km from the Adriatic coast at Rimini.