Bellinzona's three castles: Castelgrande, Montebello, Sasso Corbaro and the Murata

The short answer

The Fortress of Bellinzona is one World Heritage property, not three separate sights. The fortress's own site describes it as three castles, an imposing bulwark and the town walls, inscribed in 2000.[1] The Swiss Commission for UNESCO lists it as "three castles and the fortress and town walls of Bellinzona".[9]

The planning decision is mostly about the season. According to the fortress's visit page, read on 9 October 2026, all three castles are open from 28 March to 8 November 2026; from 9 November 2026 to 18 March 2027 only Castelgrande is open, and Montebello and Sasso Corbaro can be visited only in their outer and inner courtyards.[2] The regional tourism board's castles page says the same of winter.[8]

Bellinzona is a town in its own right in the canton of Ticino.[3] XTOUR's records treat Lugano only as a possible base for Castelgrande, never as the place that contains it, and XTOUR does not publish travel times between the two.

The four parts of the fortress

Castelgrande. The fortress calls it the largest of the three castles, on a hill inhabited for over 6,000 years.[1] Its page traces the hill through Neolithic settlements, Roman garrisons, fortifications from the fourth century, Lombards, Franks and the bishops of Como, and dates the complex visible today to between the thirteenth and the end of the fifteenth century; the southern buildings now house the archaeological and historical museum.[4] It is the castle by the station, and the one that stays open through the winter.[2]

Montebello. The second castle stands on a hill about 90 metres above the town. The fortress says it began at the end of the thirteenth century as a residence of the Rusca family of Como, passed to the Visconti in 1335 and was enlarged between 1462 and 1490; walls ran from it north and south to Castelgrande, enclosing the town.[5] The tourism board names an "Archeologia Montebello" exhibition route.[8]

Sasso Corbaro. The highest of the three, and the odd one out: the fortress describes it as a detached complex isolated on all sides, a typical Sforza fortress on a square plan. It is also the only one whose start of construction is known exactly, early 1479, under the Florentine architect Benedetto Ferrini, who died of plague that autumn; the ducal engineer Gabriele Ghiringhelli finished it.[6] Its name, the fortress says, means "raven rock".[1]

The Murata. The bulwark joined Castelgrande on its west side and blocked the whole Ticino valley. The fortress's page says a bridge, the Ponte della Torretta, was added in 1489 by order of Ludovico Sforza to close the valley to the right bank of the river, and that the system, about 800 metres long, was badly damaged by the Ticino flood of May 1515, the "Buzza di Biasca".[7]

Tickets and the winter season, as published

The fortress's visit page sells a combined ticket for the three castles and a separate combined ticket for the temporary exhibitions at Castelgrande, Sasso Corbaro and the Museo Villa dei Cedri, and lists free entry for AG Culture holders and children up to 5.[2] The fortress's page heads the first "Fortezza Pass"; the tourism board calls it the Fortress Pass and the second the Expo Pass, and says the Fortress Pass is sold online, at the InfoPoint in Bellinzona and at the castles' ticket offices.[8] The fortress's page also warns that a ticket for the Trenino Artù, a tourist train it describes as running from the historic centre to Montebello and Sasso Corbaro, does not include entry to Montebello or Sasso Corbaro.[2]

The fortress's visit page says all three castles can be reached on foot or by public transport: Castelgrande by the Salita Castelgrande path or a lift from Piazzetta della Valle, and the two upper castles by footpaths or bus line 4 towards Sasso Corbaro.[2] The page also gives its own walking estimates between the castles; XTOUR does not publish walking times as its own. The page adds that the fortress took part in Pro Infirmis's digital accessibility mapping;[2] XTOUR has not read that mapping.

XTOUR's reading: a winter visit is a Castelgrande visit, with the upper castles seen from their courtyards; a visit in the main season is the one in which all three interiors and their exhibitions are open.

Where the official accounts disagree

• How old the defences are. The Swiss Commission for UNESCO says the defences have their origin in the Old Stone Age;[9] the fortress's own page on Castelgrande begins the hill's history with Neolithic settlements of the sixth millennium BCE.[4]
• Who built the great wall, and when. The Lavaux World Heritage site's overview of Swiss sites says the Visconti built the great wall from Castelgrande in the fifteenth century;[10] the fortress's page on the Murata says an early wall probably followed the Visconti conquest of 1340 and that the wall was significantly reinforced and doubled in the 1480s under the Sforza.[7]
• What makes it unique. The fortress quotes the statement made at inscription, "the only visible example in the Alpine region" of several castles joined by walls;[3] the tourism board calls it "the only example of such medieval military architecture in Europe".[8] XTOUR repeats neither claim as its own.
• The spelling. The fortress writes Castel Grande, the Swiss Commission for UNESCO Castelgrande.[9][1]

What XTOUR does not know

XTOUR does not publish opening hours, prices or crowd information for the fortress, and it has not read the accessibility mapping. The season dates above are the fortress's own for 2026 and early 2027; dates for later seasons were not published on the page XTOUR read. The fortress's management plan, which its site says was drawn up in 2022 by the City of Bellinzona and the Canton of Ticino for 2022 to 2025,[3] was not read.

For Ticino as a base, see Lugano. The fortress is one of the properties in Switzerland's World Heritage sites.