LONDON (Reuters) - Meghan, Britain’s Duchess of Sussex, sought advice from two senior members of the royal family before writing a letter to her father which is at the centre of a privacy lawsuit against a tabloid newspaper, court documents show.Meghan, the wife of Queen Elizabeth’s grandson Prince Harry, is suing Associated Newspapers over articles in the Mail on Sunday that included parts of the handwritten letter she had sent to her estranged father Thomas Markle in August 2018. She says the publication of the letter was a misuse of private information and breached her copyright, and her lawyers are seeking aggravated damages. Meghan and her father have not spoken since he pulled out days before her wedding to Harry in May 2018 because of ill health but subsequently gave a number of media interviews. In her latest submission to London’s High Court, her legal team rejected the Mail’s claim that the letter was part of a media strategy, but that it followed “advice from two senior members of the Royal Family” on how to get her father to stop talking to the press, her lawyers said.