[1] The flag is a tricolour consisting of three horizontal stripes, each of which is the same height.

These were representatives of the bishop of Utrecht in the city of Groningen.

From the 17th century onwards, Groningen flags and banners often used the city coat of arms, possibly combined with the colours green and white.

Later, in 1897, Mayor Modderman announced ‘that the flag of this municipality consists of three bands of equal width, the middle one being coloured green and the other two white’.

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