The Netherlands

See:
The Hague

The Kingdom of the Netherlands has had an impact on Europe far larger than its size. Whether when independent or when incorporated into France for example, or Belgium and Luxembourg which were separated from it by the Spanish. It also shares some parallels and a shared history with the UK. Such as William of Orange, The Dutch king who also ruled England and Ireland. Being invited to the UK to rule by those fearing the return of the Roman Catholics. Also the perception of bland food, however spiced by the cuisines of former colonies. India in the UK case and Indonesia in the Dutch.