Canton of Redange, 5 localities
Saeul, the smallest commune with the oldest oak
Saeul is Luxembourg's least populated commune, with 1,081 residents on 1 January 2026 across five localities. The government portal places the country's oldest oak here, at the entrance to the village beside an old washhouse and a pond. It also has a Romanesque church, the chapel at Kapweiler and a garden of Luxembourgish roses in Calmus.
In 30 seconds
Full read: 2 min
- Saeul is Luxembourg's least populated commune, with 1,081 residents in 2026.
- It has the country's oldest oak, according to the government portal.
- Its church is Romanesque, and Calmus has a garden of Luxembourgish roses.
- Drive in on the N8 or N12, or cycle from Useldange.
I'd come to Saeul by bike from Useldange, which is how the official portal pitches it. The oak, a look round the Romanesque church and, in season, the rose garden at Calmus. It's a short, lovely stop rather than a full day.
Before you go
What I would keep in mind
-
01 Most beautiful
The country's oldest oak
The government portal calls it Luxembourg's oldest oak. It stands at the village entrance as you come from Redange and is listed among the country's remarkable trees.
-
02 Getting there
By bike from Useldange
The 13.43 km Sunseeker route starts at Useldange Castle and runs out to the oak, with a picnic stop in its shade.
Useldange Castle -
03 My tip
Luxembourgish roses in Calmus
The Um Titzebierg garden in Calmus gathers a wide range of Luxembourgish roses, according to the Guttland regional tourist office.
Saeul holds two records that suit it well. It’s the commune with the fewest people in Luxembourg, 1,081 at the start of 2026, and the country’s official portal credits it with the oldest oak in the land. A tiny village with an enormous tree is reason enough, for me, to go a few kilometres out of my way.
The oak and the pond
At the entrance to the village, coming from Redange, stands a majestic oak that the commune lists on its register of remarkable trees. Between the oak and the restored washhouse, the waters of the Goldkneppchen form a natural pond, and farm markets were held on this very spot from 1846. The Guttland regional tourist office describes it as a park for a rest, and a walking circuit and three running routes start here.
What else is in the village?
The centre is arranged around a Romanesque church, with a flower-filled island that keeps the remains of the old churchyard, alongside the town hall, school and a few shops. The commune explains that the village grew up on the old road from Arlon to Mersch, below a Celtic hillfort called the Kaschelt, and that today it’s carved up by the N8 and N12 main roads, which lorry drivers know well and residents could happily do without.
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Kapweiler and Calmus
In Kapweiler, a hamlet of 48 people according to the commune, St Anne’s chapel stands out for its square tower, protected as a national monument and being restored according to the regional office. In Calmus, the Um Titzebierg garden brings together a wide range of Luxembourgish roses and draws garden lovers. Near Schwebach there’s a well-regarded restaurant putting a modern spin on local cooking, though the regional office gives no prices or hours.
Is it worth the detour?
If you’re driving the N12 north or west anyway, yes, because it takes ten minutes and the oak is right by the road. I wouldn’t make a special trip from the capital just for it, though. Where Saeul really fits is on a bike ride through the Attert valley, taking in Useldange, Vichten and Saeul in one morning. The distances are short, the terrain is gentle and each village brings something different, a castle, a Roman mosaic and a venerable tree. I’d keep Calmus for when the roses are in bloom, and I’d bring a picnic for the oak.
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Getting there
There’s no railway to Saeul. By car, take the N8 or N12. By bike, the government portal suggests the 13.43 km Sunseeker route, which starts at Useldange Castle and stops in the shade of the oak, ideal with a picnic. That fills a morning nicely in the western Guttland, and you’ll find the neighbouring sights under Useldange and Vichten.
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The ruins of Useldange Castle, with a square tower, round towers and walls beside the road
Saeul at a glance
| Item | Figure | Source |
|---|---|---|
| Residents on 1 Jan 2026 | 1,081 | STATEC |
| Rank among 100 communes | Least populated | STATEC |
| Official localities | 5 | CACLR |
| Residents of Saeul village | More than 513 | Commune of Saeul |
| Farm markets by the pond since | 1846 | Commune of Saeul |
The five localities are Calmus, Ehner, Kapweiler, Saeul and Schwebach.
Test yourself
True or false?
0/3 Pick before you peek.
-
Saeul is Luxembourg's least populated commune.
See the answer
True. With 1,081 residents on 1 January 2026, it's the smallest of the 100 communes by population, according to STATEC.
-
Saeul's oak is deep in a forest, far from the village.
See the answer
False. It stands at the village entrance coming from Redange, near the washhouse and pond, according to the commune.
-
Saeul's church is Romanesque.
See the answer
True. Both the commune and the Guttland regional tourist office describe it as Romanesque.
- Residents on 1 January 2026
- 1,081
- Official localities
- 5
- First farm markets by the pond
- 1846
- Bike route from Useldange
- 13.43 km
Map
Where Saeul is
The thick dashed line is the border with Belgium, France and Germany, and the fine ones divide the twelve cantons. The Éislek lies to the north and the Moselle to the east. Every number opens its guide.
Map data © OpenStreetMap contributors (ODbL)
- 1Valley of the Seven CastlesEisch valley, Mersch to Koerich
- 2GuttlandTourist region of the centre and west
- 3GarnichCanton of Capellen, Guttland region
- 4MerschCanton of Mersch, Guttland
- 5KehlenCanton of Capellen, Guttland region
- 6LintgenCanton of Mersch, 3 localities
- 7KopstalCanton of Capellen, Guttland region
- 8LorentzweilerCanton of Mersch, 7 localities
- 9BissenCanton of Mersch, 2 localities
- 10KoerichCanton of Capellen, Guttland region
- 11SteinfortCanton of Capellen, Guttland region
- 12HabschtCanton of Capellen, Eisch valley
- 13HelperknappCanton of Mersch, Guttland region
- 14MamerCommune in the canton of Capellen, Guttland region
- 15RedangeMain town of the canton of Redange
- 16BeckerichCanton of Redange, 8 localities
- 17EllCanton of Redange, 5 localities
- 18UseldangeCanton of Redange, 4 localities
- 19SaeulCanton of Redange, 5 localities
- 20VichtenCanton of Redange, 2 localities
- 21PréizerdaulCanton of Redange, 4 localities
- 22Groussbus-WalCanton of Redange, merged in 2023
- 23RambrouchCanton of Redange, 17 localities
- 24MertzigCanton of Diekirch, a commune since 1875
- 25SandweilerMunicipality in the canton of Luxembourg, Guttland
- 26WalferdangeMunicipality in the canton of Luxembourg, Guttland
- 27SteinselMunicipality in the canton of Luxembourg, Guttland
- 28NiederanvenMunicipality in the canton of Luxembourg, Guttland
- 29SchuttrangeMunicipality in the canton of Luxembourg, Guttland
- 30ConternMunicipality in the canton of Luxembourg, Guttland
- 31Weiler-la-TourMunicipality in the canton of Luxembourg, Guttland
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Frequently asked questions
What is there to see in Saeul?
Luxembourg's oldest oak at the village entrance, with the restored washhouse and pond, the Romanesque church, the chapel at Kapweiler and the Um Titzebierg rose garden in Calmus.
Which is the smallest commune in Luxembourg by population?
Saeul, with 1,081 residents on 1 January 2026, according to STATEC. Putscheid, Kiischpelt, Fischbach and Bech come next.
Where is the oldest oak tree in Luxembourg?
In Saeul, at the entrance to the village as you arrive from Redange. The government portal calls it the country's oldest oak, and the commune says it's on the register of remarkable trees.
How do I get to Saeul?
Drive in on the N8 or N12, which cross the village, or cycle the 13.43 km Sunseeker route from Useldange. There's no railway station.
What is the Kapweiler chapel?
St Anne's chapel in the hamlet of Kapweiler, whose square tower is protected as a national monument. The Guttland regional tourist office says it's being restored.
By
Tourism graduate with a master’s in Tourism Management and Planning from the University of Málaga, who has travelled across Europe. He writes every guide from official sources and his own judgement.
Published on . Facts checked on .
Sources
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Photos: Cayambe (CC BY-SA 3.0); Michielverbeek (CC BY-SA 4.0), via Wikimedia Commons.