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In initial deals, London's benchmark FTSE 100 index of top companies shed almost 0.2 percent to 7,108.40 points, having finished Thursday at an all-time pinnacle of 7,120.26.
In the eurozone on Friday, Frankfurt's DAX 30 declined by nearly 0.1 percent to 11,443.31.
The CAC 40 index in Paris nudged marginally lower to stand at 4,837.68 points compared with Thursday's closing level.
The London market will close at 1230 GMT on Friday in shortened holiday trade. Frankfurt and Paris however remain open as normal.