By mid century, Pisan authority was unopposed in Sardinia, thanks to intermarriages between the Visconti family and the other great families of Pisa (Gherardeschi and Capraia) and Sardinia (Lacon and Bas-Serra).
Di pertengahan abad, otoritas Pisa tidak bertentangan di Sardinia berkat antar pernikahan antara keluarga Visconti dan keluarga hebat lainnya di Pisa (Gherardeschi dan Capraia) dan Sardinia (Lacon dan Bas-Serra).