The lordship of Piedmont, later the principality of Piedmont (), was originally an

appanage An appanage, or apanage (; ), is the grant of an estate, title, office or other thing of value to a younger child of a monarch, who would otherwise have no inheritance under the system of primogeniture (where only the eldest inherits). It was ...

of the County of Savoy, and as such its lords were members of the Achaea branch of the

House of Savoy The House of Savoy (, ) is a royal house (formally a dynasty) of Franco-Italian origin that was established in 1003 in the historical region of Savoy, which was originally part of the Kingdom of Burgundy and now lies mostly within southeastern F ...

. The title was inherited by the elder branch of the dynasty in 1418, at about which time

Savoy Savoy (; )  is a cultural-historical region in the Western Alps. Situated on the cultural boundary between Occitania and Piedmont, the area extends from Lake Geneva in the north to the Dauphiné in the south and west and to the Aosta Vall ...

was elevated to ducal status and

Piedmont Piedmont ( ; ; ) is one of the 20 regions of Italy, located in the northwest Italy, Northwest of the country. It borders the Liguria region to the south, the Lombardy and Emilia-Romagna regions to the east, and the Aosta Valley region to the ...

to princely status. When the House of Savoy was given the

Kingdom of Sardinia The Kingdom of Sardinia, also referred to as the Kingdom of Sardinia and Corsica among other names, was a State (polity), country in Southern Europe from the late 13th until the mid-19th century, and from 1297 to 1768 for the Corsican part of ...

, the Savoyards used the style of Prince of Piedmont () for their

heir apparent An heir apparent is a person who is first in the order of succession and cannot be displaced from inheriting by the birth of another person. A person who is first in the current order of succession but could be displaced by the birth of a more e ...

. This first came into use by Prince Victor Amadeus of Savoy. The usage was retained when

Victor Emmanuel II Victor Emmanuel II (; full name: ''Vittorio Emanuele Maria Alberto Eugenio Ferdinando Tommaso di Savoia''; 14 March 1820 – 9 January 1878) was King of Sardinia (also informally known as Piedmont–Sardinia) from 23 March 1849 until 17 March ...

became

King of Italy King is a royal title given to a male monarch. A king is an absolute monarch if he holds unrestricted governmental power or exercises full sovereignty over a nation. Conversely, he is a constitutional monarch if his power is restrained by ...

, "Prince of Piedmont" becoming roughly equivalent to the British "

Prince of Wales Prince of Wales (, ; ) is a title traditionally given to the male heir apparent to the History of the English monarchy, English, and later, the British throne. The title originated with the Welsh rulers of Kingdom of Gwynedd, Gwynedd who, from ...

", the title bestowed to the

Crown prince A crown prince or hereditary prince is the heir apparent to the throne in a royal or imperial monarchy. The female form of the title, crown princess, is held by a woman who is heir apparent or is married to the heir apparent. ''Crown prince ...

Lords of Piedmont

*????–1233 Thomas I, also

Count of Savoy The titles of the count of Savoy, and then duke of Savoy, are titles of nobility attached to the historical territory of Savoy. Since its creation, in the 11th century, the House of Savoy held the county. Several of these rulers ruled as kings at ...

*1233–1259 Thomas II, son of previous *1259–1282 Thomas III, son of previous *1282–1334

Philip I Philip(p) I may refer to: * Philip I of Macedon (7th century BC) * Philip I Philadelphus (between 124 and 109 BC–83 or 75 BC) * Philip the Arab (c. 204–249), Roman Emperor * Philip I of France (1052–1108) * Philip I (archbishop of Cologne) ( ...

, son of previous, also

Prince of Achaea The Prince of Achaea was the ruler of the Principality of Achaea, one of the crusader states Frankokratia, founded in Greece in the aftermath of the Fourth Crusade (1202–1204). The principality witnessed various overlords during its more than tw ...

(1301–1307) *1334–1367 James, son of previous, claimant to Achaea *1368–1368 Philip II, son of previous *1368–1402 Amadeus, brother of previous, claimant to Achaea *1402–1418

Louis Louis may refer to: People * Louis (given name), origin and several individuals with this name * Louis (surname) * Louis (singer), Serbian singer Other uses * Louis (coin), a French coin * HMS ''Louis'', two ships of the Royal Navy See also ...

, brother of previous

Princes of Piedmont

:''Note: The names in bold denote those that succeeded to the throne''.

Princes of Piedmont and Naples

When the House of Savoy became the ruling dynasty of Italy in 1861, they continued to use the title of Prince of Piedmont for the heir apparent but also began alternating it with a new title, the Prince of Naples.

Insignia

File:Royal Standard of the Crown Prince of Italy (1880-1946).svg, Royal Standard of the Prince of Piedmont File:CoA of the prince of Piedmont.svg, Coat of arms of the
Prince of Piedmont {{Italian royal titles Piedmont, Lord of Piedmont, Lord of Savoyard state Counts of Piedmont Princes of Piedmont

House of Savoy