Chris de Burgh has spoken about his two new grandchildren, twins Hugo and Oscar, saying that daughter Rosanna Davison's newborns are "a miracle that nobody can explain, not even the doctors".

Speaking on RTÉ One's Today Show, the singer-songwriter said he doesn't know how Rosanna Davison got through the "devastating" 14 miscarriages she suffered, but that life is now "wonderful" with the twins and their one-year-old sister Sophia. 

Sophia was born by gestational surrogacy on November 22 last year.

An emotional de Burgh said: "As you probably know, Rosanna's story and the difficulty of having children... but her house in Cabinteely is wonderful, it's amazing. 

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"Sophia has just turned one and there are now two little baby brothers for her to boss around. My wife Diane goes there every day to look after them. I'm into the feeding stage; I used to change the nappies on my three but I haven't got round to it yet!

"Well, when she was on The Late Late Show in February and she told the world that she had had 14 miscarriages, which for any woman, even one is absolutely terrible. I don't know how she got through that, and her husband Wes. 

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"She's a very tough girl. She's a marvellous girl and she was told she couldn't have children which was devastating. Then, they went the surrogate route and had their biological baby, Sophia, who is absolutely gorgeous.

"And then, by a miracle that nobody can explain, not even the doctors, we now have two little baby boys - they are called Oscar and Hugo and they are absolutely superb. 

"We were on a family holiday in Greece and we were talking about family, and then this year we have three babies in the house - it's wonderful!"