READ · COMPARE · EXPLAIN
Petrus: distinguishing similar-sounding châteaux
This is a producer in Pomerol on Bordeaux's Right Bank. Petrus, owned by Société Civile du Château Petrus, and La Fleur-Pétrus, handled by Établissements Jean-Pierre Moueix, are separate wines.
Distinguish Petrus and La Fleur-Petrus, and link ownership, vineyard, and blend information to the correct wine.
Questions for this course
Is La Fleur-Pétrus the second wine of Pétrus?
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France / Bordeaux / Pomerol
Aliases & spellings: Pétrus / Petrus
Update date: 2026-09-24
Two names that include the same place name
Although Petrus and La Fleur-Petrus are both Pomerol wines, they do not have a senior-junior relationship. La Fleur-Petrus has explanations for its independent vineyard and grape varieties.
The vineyard of La Fleur
According to the official materials, La Fleur-Pétrus has gravel and deep clay soils, and the plantings are 91% Merlot, 6% Cabernet Franc, and 3% Petit Verdot. These figures concern the vines planted in the La Fleur vineyard—do not transfer them to Pétrus.
Do not infer raw materials from the family name.
Just the information that there is a connection to the Moueix family does not establish which company owns which vineyard or produces which wine. Begin comparison by matching the full wine name on the label to the subject of the materials.
What to align and what to compare.
Petrus
- Conditions to standardize
- Petrus
- Conditions for comparison.
- Owned by Vidro
- Additional points to confirm
- A different wine from La Fleur
La Fleur-Pétrus
- Conditions to standardize
- Petrus
- Conditions for comparison.
- There is a description of independent vineyards.
- Additional points to confirm
- Do not treat as the second wine of Petrus
91・6・3%
- Conditions to standardize
- Petrus
- Conditions for comparison.
- Planting proportions at La Fleur
- Additional points to confirm
- Do not repurpose blends for other labels or finished products
Order of reading and key points to consider in each article
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READ · HYPOTHESIZE · RECONSIDER
Reading Petrus sources: distinguishing similar-sounding châteaux
Compare the stated conditions in the documentation. Numbers specifying vintages should be treated as information for that specific year.
This summarizes materials published by producers, regional groups, and importers. Each source includes the publisher and the date the material was checked.
| Comparison items | What can be determined from the materials | Ability to distinguish by reading |
|---|---|---|
| Petrus | Owned by Vidro | A different wine from La Fleur |
| La Fleur-Pétrus | There is a description of independent vineyards. | Do not treat as the second wine of Petrus |
| 91・6・3% | Planting proportions at La Fleur | Do not repurpose blends for other labels or finished products |
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Read the explanation for each question
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What is the relationship between these two wines?
Similar names alone do not create a hierarchy.
What does the figure of 91% Merlot refer to?
Check the label and denominator in the source. The figure describes the varieties planted in the La Fleur vineyard and cannot be directly applied to the blend in Petrus. After confirming the wine name, read whether the figure refers to planted area or the final blend.
Where should you start searching for material?
Check each of ownership, vineyard, and designation.
Basis and sources for the exercise
Practice exercises in comparison
Please explain differences in raw materials and winemaking by reading the table and sources.
Read examples of organizing comparisons
| Conditions for Comparison | Comparison items | What can be determined from the materials | Ability to distinguish by reading |
|---|---|---|---|
| Petrus | Owned by Vidro | A different wine from La Fleur | |
| La Fleur-Pétrus | There is a description of independent vineyards. | Do not treat as the second wine of Petrus | |
| 91・6・3% | Planting proportions at La Fleur | Do not repurpose blends for other labels or finished products |
Sources of materials used for comparison are listed in the text and exercises.
Explain in your own words
Write an introduction to avoid confusion between Petrus and La Fleur-Petrus, and list additional sources needed to learn about their blends.
Check after writing
- Did you specify the label, vintage, and scope of materials to be compared?
- Did you distinguish and explain the three items in the table?
- Did you separate verified facts from points to check further with additional references or tasting?
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