| skos:altLabel | - Belgium
- France
- Italy
- Netherlands
- founding member
- founding members
- Luxembourg
- West Germany
- Six
- founding
- The Six
- six
- 6 members
- ECSC members
- Founding members
- Inner Six/Outer Seven
- communities' states
- first states
- founding members of the European Communities
- founding members of the European Union
- inner six
- original six members
- six 'inner'
- six core states
- six countries
- six founding member states
- six founding member states of the ECSC
- six founding members
- six founding states
- six member states
- six original member states
- the Six
- the original six
- the six member states'
- the six members
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