London (CNN) Queen Elizabeth II has sent a coded message to Britain's warring politicians, urging them to set aside their differences and forge a way forward through the Brexit impasse.

In a speech to a women's group near Sandringham on Thursday, the monarch said lawmakers should respect different points of view and seek "common ground," in what is a most unusual intervention into the national political debate.

"As we look for new answers in the modern age, I for one prefer the tried and tested recipes, like speaking well of each other and respecting different points of view; coming together to seek out the common ground; and never losing sight of the bigger picture," the Queen said.

As a constitutional monarch, the Queen has no political role and is expected to refrain from expressing any personal view that may be construed as party political. She's rarely faltered in that responsibility over the course of nearly seven decades on the throne, earning near universal respect.

Her subjects know almost nothing about her thoughts, apart from her passion for horses and dogs. That's why it's so extraordinary to see her wade into the biggest political debate for a generation in the United Kingdom.

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