- 13,962 viewsDuration: 3:31Now imagine this, at just 17 years old, a young girl took the bold step of walking over 60 kilometers from her home to join the Coventry and become a nun in the Catholic Church. This is the story of 93-year-old Markina Nyambura, one of 10 sisters under the sisters of Mary immaculate, who was celebrated earlier today in her diamond Jubilee, as she clocked 70 years of service to humanity and the church