LONDON -- Thieves stole jewelry and other items from the remote Scottish home of Princess Diana's mother as she was in London to testify at the trial of Diana's butler.

Frances Shand Kydd, 66, said Friday the thieves apparently broke in on Wednesday after she left her home on the Isle of Seil, near Oban in western Scotland. Her housekeeper discovered the break-in Thursday morning.

"While I was away giving evidence my house was burgled and all my jewelry taken. Everything," she said.

Nothing connected to Diana was taken, she said.

Shand Kydd, whose appearance at the trial had been widely reported beforehand, said she did not know how many items were stolen or their value, but much of the jewelry had sentimental value.

Stolen goods included "items of value and, more importantly, sentimental value, pieces which belonged to my grandparents and a ring given to me by my father," she said.

"They went through the entire house. Nothing pertaining to Diana was taken. They were professionals looking for jewelry, which they took."

A spokeswoman for Diana's brother Earl Spencer said the robbery at his mother's home "is dreadfully sad but now it is a police matter."

During two hours on the witness stand on Thursday, Shand Kydd said she and her Diana had been estranged for four months before the princess's death in a car accident in August 1997. She also disputed claims by Diana's butler, Paul Burrell, that he had been asked to keep certain of her possessions safe.