just a remind that the Kingdom was of Sardinia only, piedmont was a principality under the duchies of Savoy Piedmont-Sardinia was the popular name but all institutions were referred to Sardinia: His Sardinian Royal highness Sardinian Royal Army Sardinian Royal Navy still, documents were written in Italian, diplomacy was in French (well, that was that time English) and the king spoke Piedmontese (and not just to "father his nation" with common women...)
just a remind that the Kingdom was of Sardinia only, piedmont was a principality under the duchies of Savoy
Piedmont-Sardinia was the popular name
but all institutions were referred to Sardinia:
His Sardinian Royal highness
Sardinian Royal Army
Sardinian Royal Navy
still, documents were written in Italian, diplomacy was in French (well, that was that time English) and the king spoke Piedmontese (and not just to "father his nation" with common women...)
The official capital was Turin thought, Cagliari was just ruled under a Viceroy.