Princess Anne, 73, was scheduled to visit the NLV Pharos, a lighthouse tender in Scotland, on Monday and Tuesday.
She has also canceled her planned visits to Brancaster Station and Citizens Advice Norwich in Norfolk on Thursday.
Anne was also due to be a guest at a barbecue with London Scottish Rugby on Thursday, however the club stated in a Facebook post: “We are sorry to announce that HRH Princess Anne will no longer be in attendance for our pre-season BBQ on 18th July as she returns to reduced duties. We wish her well in her recovery.”
However, she did visit the 4 Military Intelligence Battalion at Bulford Barracks, Salisbury, Wiltshire, on Wednesday.
The Princess Royal is making a phased return to public duties after spending five nights in the hospital being treated for a concussion and a minor head injury from a horse-related incident on her Gatcombe Park estate on June 23.
She carried out her first engagement last Friday, visiting the Riding for the Disabled Association (RDA) National Championships at Hartpury University and Hartpury College in Gloucestershire.
The association is celebrating its 55th anniversary this year, and the Princess has a long-standing involvement with the organization, having become patron in 1971 and president in 1986.
Anne, dressed in an olive-green checked suit with matching blue gloves and a trilby, joined supporters in the arena before presenting around two dozen awards and meeting winners.
RDA UK Chair, Helena Vega Lozano, revealed that the Princess, who had a bruise under her left eye, had gotten out of the car at the start of the engagement and immediately admitted, “I can’t remember a single thing about it.”
