Stora Sundby Castle Travel Guide
Free Guide: Sweden's enchanting calendar castle by Lake Hjälmaren: towers for seasons, rooms for weeks, windows for days—a romantic blend of medieval might and 19th-century whimsy.
A brief summary of Stora Sundby Castle
Sweden's enchanting calendar castle by Lake Hjälmaren: towers for seasons, rooms for weeks, windows for days—a romantic blend of medieval might and 19th-century whimsy.
Perched on the shores of Lake Hjälmaren, Stora Sundby Castle is a romantic 19th-century fairytale fortress with medieval roots. Its calendar-inspired architecture features four towers for the seasons, twelve smaller turrets for the months, 52 rooms for the weeks, and 365 windows for the days. Explore the scenic park, rune stone, old ruins, deer enclosure, and café amid lush gardens and wildlife habitats. Privately owned by the Klingspor family since 1888, guided tours are available for groups in summer.
On-site amenities
Drink options
Food options
Seating areas
Trash bins
Information boards
Opening hours
- Every day10 am–6 pm
Opening hours as listed on the venue’s Google Business Profile. Hours can change for services and special events, so check with the venue before you go.
- Address
- Stora Sundby Gård, Slottet, 635 35 Stora Sundby
- Phone
- Website
Getting there
Car
Bus
Taxi
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Medieval Origins and Defensive Beginnings
Stora Sundby Castle's story unfolds from the 13th century, when a simple defensive fortification rose strategically at Hjälmaresund on Lake Hjälmaren, Sweden's fourth-largest lake. This early structure, whose foundations remain visible in the adjacent oak park, served as a vital outpost amid power struggles. In 1364, it was besieged by King Albrekt of Mecklenburg during his contest with Magnus Eriksson for the Swedish throne, highlighting its military significance.By the 15th century, the original fort was abandoned, paving the way for a new castle on the current site, beautifully positioned along the lake's edge. Ownership passed through noble hands, including Lars Ulfsson Blå around 1400 and Ydha Johansson Bülow, who briefly gifted it to Julita Abbey before it returned to her family.
Sparre Family's Renaissance Legacy
The influential Sparre family shaped the castle profoundly from the late 15th century. Sigge Larsson Sparre initiated the new structure, but his son Lars Siggesson Sparre, Gustav Vasa's riksmarskalk, oversaw major construction from 1546–1584, completing it with three towers as a sturdy stem castle. His son, Erik Larsson Sparre, further developed it into Sundby House, a Renaissance stronghold.The Sparres held the estate for over 300 years, enduring events like the 1600 Linköping Bloodbath, after which it was confiscated by the crown but later restored to Erik's widow, Ebba Brahe. In the 17th century, Axel Sparre enlisted Nicodemus Tessin the Elder and Erik Dahlbergh for Baroque upgrades, including the Knight's Hall between 1660–1670.
Romantic Transformation into a Calendar Castle
In 1827, Count Carl de Geer acquired Stora Sundby for his daughter Charlotta and her husband, Baltzar von Platen. Dissatisfied with the old fortress, Carl's wife Ulrika Sofia Sprengtporten, inspired by Sir Walter Scott's Ivanhoe novels, demanded a romantic medieval castle. De Geer commissioned British architect Peter Frederick Robinson, who had designed Scott's Abbotsford, to redesign it in Neo-Gothic Norman style.Master builder Abraham Nyström executed the 16-year project from 1832–1848, cladding the existing walls with pinnacles and towers while preserving interiors. The result is a whimsical 'calendar castle': four grand towers for seasons, twelve small ones for months, 52 rooms for weeks, and 365 windows for days, evoking timeless enchantment by the lake.
Estate Life and Klingspor Ownership
The castle remains a private residence, home to the fourth generation of the Klingspor family since 1888, when Louise Silfverschiöld married Count Carl Klingspor. Previously leased to Princess Stephanie von Wedel until 1937, it blends lived-in heritage with careful preservation. Photography inside is prohibited to protect its historic interiors.
Parklands, Wildlife, and Natural Harmony
Surrounding the castle, expansive grounds invite exploration: fragrant rose gardens, a well-preserved rune stone, 16th-century ruins, and walking paths through diverse habitats. A deer enclosure houses red deer, while forests teem with moose and boar. Ponds and wetlands foster birdlife, reflecting active conservation efforts for rich flora and fauna. Once, lake waters lapped at the walls before drainage in 1877–1888.
Evendo Review Centre
Guest reviews
Best time to go
Quietest: Jan, Feb & Nov · before 7am or from 8pm
Busy times are Evendo estimates for a typical year, to help you plan. Actual crowds vary with events, school holidays and the weather.
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