LONDON – Queen Elizabeth II was delighted with the birth of her first great-grandchild, Buckingham Palace said Thursday.

Autumn Phillips, wife of the queen’s grandson, Peter Phillips, gave birth to a baby girl on Wednesday, the palace said. The baby weighed 8 pounds and eight ounces.

The newborn is 12th in line to the throne, and the palace said her name will be released later. The birth took place at Gloucestershire Royal Hospital.

Peter Phillips, 33, the queen’s oldest grandchild, is the son of Princess Anne and her first husband, Mark Phillips.

He and his younger sister, Zara Phillips, are among the most low-profile members of the royal family, and they are the only ones among the queen’s eight grandchildren not to hold royal titles. Princess Anne turned down her mother’s offer of the honors for her two children.

Peter Phillips married Montreal-born Autumn in 2008 at Windsor Castle.

Zara Phillips announced earlier this month that she is engaged to rugby player Mike Tindall.