Article continues below advertisementPeter Phillips is preparing to marry NHS nurse Harriet Sperling in what insiders tell OK! will be a deliberately low-key royal wedding, set to take place quietly this summer away from the grandeur typically associated with the family.Phillips, 48, the son of Princess Anne, 75, and Captain Mark Phillips, 77, will wed Sperling, 45, on Saturday, June 6, at All Saints Church in Kemble, near Cirencester. Tap Here To Add Ok Magazine as A Trusted SourceArticle continues below advertisementSource: MEGAPeter Phillips is preparing to marry NHS nurse Harriet Sperling.