Lindo Wing confirmed for royal birth

Image copyright PA
Image caption Prince George's sibling will be born in the Lindo Wing of St Mary's Hospital

In the coming weeks the brown door of a private maternity wing will once again become the focus of considerable global attention.

The American networks aren't distracted by a domestic election.

Facts, once again, will be in short supply but that won't deter the broadcasters (including the BBC).

A royal birth, for the monarchy's supporters, is a moment to celebrate.

Its critics view it as a moment to consider whether what they call "this circus" of a hereditary institution is the best way to run things.

For William and Kate a very private moment will, eventually, be shared very publicly.

Their second child will be a prince or a princess. But not, as things stand, a future king or queen.

Prince George will have a new playmate; the Cambridge family will be expanded; and the monarchy's future will be further strengthened.