A woman contesting her late sister’s will had engaged in four years of litigation “to effectively challenge her sister’s autonomy” in deciding to leave her estate to a long-term friend, the High Court has heard.

A woman who died from cancer, and whose will is being contested over alleged undue influence, was no more vulnerable than any other cancer patient in a similar position, a doctor has told the High Court.

Two sisters of a woman who died from cancer and left her estate to a friend have claimed in the High Court that the will is invalid.