Columnist Ruth Wishart looks ahead to a fascinating talk by Judy Murray at Cove Burgh Hall this weekend.

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All mums are proud of their kids. But some have more cause to be proud than others.

Step forward Judy Murray, mother to two sons who have both risen to be the world number one in their chosen sport of tennis.

Judy is coming to the Rosneath Peninsula to talk about her life and times in Cove Burgh Hall this coming Sunday, and I can promise you a treat since I’ve had the pleasure of chairing her events at both Glasgow and Edinburgh book festivals.

I wasn’t quite sure what to expect at the first encounter – but I needn’t have worried.

With Murray senior, what you see is what you get – a straight-talking Dunblane born woman who has known what it’s like to have to use your wits and fresh air when the funding runs out for cherished schemes.

When she was Scotland’s national tennis coach, with a modest budget and no great prospect of sunny practice days, she used to stick used tennis balls in the tumble drier to fluff them up for the next session.

This is a woman of no little ingenuity; one of the first to utilise video technology to help dissect the strengths and weaknesses of opponents.

She came from a family where sports were always part of the package, and tennis featured in games where her father was not above re-writing the rules to make sure his children didn’t beat him.

Her mum, she says, was rather more laid back. Which makes you think that perhaps always driven Andy got more of grandpa’s genes, whilst the more chilled Jamie was more like granny.

Judy herself was no mean competitor, playing at the highest level on the circuit, though once turning down the chance of an American scholarship, a route her eldest son was to take many years later, in favour of going to France.

Andy, of course, famously went to the same tennis academy as great rival Rafael Nadal in Spain – a difficult but important step for a 15-year-old destined for greatness, but born in a country not exactly famed for producing tennis legends.

Judy will talk about all that on Sunday – not holding back, I suspect, when discussing the flaws in the British training system and the suffocating influence of some of the Wimbledon “blazerati”.

We’ll also touch on her greatest triumph of all – making the Blackpool round of Strictly Come Dancing despite, as she won’t say, having all the ballroom grace of a woman blessed with two left feet.

She was, however, blessed with a great sense of humour, which I expect to be on full view when she talks about her life and times in a refreshingly frank manner.

I’m not sure the douce Edinburgh audience were expecting to learn that some tennis selectors talked “a load of b******s”.

Fasten your seat belts and come along.

The event takes place at Cove Burgh Hall on April 29. Bar, soup and sandwiches at 12.30pm, Judy Murray in conversation at 1.30pm.