Created the head of the house a count palatine in 1371; the marquisate of Sismano was conferred on them in 1620, those of Casigliano and Civitella in 1629, of Lajatico and Orciatico in 1644, of Giovagallo and Tresana in 1652; in 1730 Lorenzo Corsini was elected pope as Clement XII., and conferred the rank of Roman princes and the duchy of Casigliano on his family, and in 1732 they were created grandees of Spain.
The duke of Savoy, who had held back from the treaty of Vervins in 1598, signed the treaty of Lyons in 1601; in exchange for the marquisate of Saluzzo, France acquired Bresse, Bugey, Valromey and the bailliage of Gex.
In 1760 the title of Reichsfiirst or prince of the Holy Roman Empire was added and attached to the lordship of Torriglia and the marquisate of Borgo San Stefano, together with the qualification of Hochgeboren.
Dissatisfaction arose under Aragonese rule from the periodical grants of Malta, as a marquisate or countship, to great officers of state or illegitimate descendants of the sovereign.
The most famous member of the family was Andrea Doria, perpetual censor of Genoa in 1528 and admiral to the emperor Charles V., who was created prince of Melfi (1531) and marquis of Tursi (in the kingdom of Naples) in 1555 The marquisate of Civiez and the county of Cavallamonte were conferred on the family in 1576, the duchy of Tursi in 1594, the principality of Avella in 1607, the duchy of Avigliano in 1613.
He proved his skill in the negotiations concerning the marquisate of Saluzzo and the town of Genoa.
Frederick fled for Lombard his life by the Mont Cenis, and in 1168 the town of Alessandria was erected to keep Pavia and the marquisate in check.
Restored the marquisate to Charles Emmanuel I.
The title of giudice was abolished and a feudal marquisate substituted.
Erected Dublin into a marquisate in favour of Robert de Vere, whom he also created duke of Ireland.