Weighty responsibility: Dr Rashbrook carries Jude in a sling Doting: With Jude and his father John Farrant Bearing her strapping baby in a sling, Dr Patricia Rashbrook, 63, shows she has lost none of her appetite for motherhood. Britain's oldest mother was taking her son Jude, who will be one on Thursday, on a trip to the shops. She insists her age is no barrier to raising a child and, while many parents might have chosen the easier option of using a pushchair, she seemed to have no trouble carrying the boy. Judging by his size, Jude is thriving in the care of his doting mother and his father John Farrant, 61. Jude, known as JJ, was born after child psychologist Dr Rashbrook paid £10,000 for IVF treatment in Russia using a donor egg under the supervision of Italian fertility expert Professor Severino Antinori. Despite being past retirement age, Dr Rashbrook is preparing to return to work part time and has been given planning permission to turn the basement of the family's £500,000 home in Lewes, East Sussex, into a consulting room. She said that when Jude was born she would take a year off work, then she and her husband would both work part time so one of them was always at home with him. While Mr Farrant. a higher education consultant, is a firsttime father, Dr Rashbrook had three children, now grown up, by her late first husband. Caroline, 27, a doctor, and sons William, 23, and Charles, 19, both students, are expected to be at Jude's first birthday party next week. His birth reignited the debate over giving fertility treatment to women who are way past natural child-bearing age. Dr Rashbrook had been refused fertility treatment in the UK, where most clinics have an upper age limit of 55. Professor Antinori, who has a track record of helping postmenopausal women have babies, took the couple to Russia because Dr Rashbrook was also beyond the age limit for treatment in Italy. By CHRISTIAN GYSIN I remember posting a thread when she first had him.