Hedwig is one of the middle names of which member of the British royal family?

Princess Michael of Kent (born 15 January 1945) is a member of the British royal family of German, Austrian, and Hungarian noble descent. She is married to Prince Michael of Kent, a grandson of King George V. Princess Michael was an interior designer before becoming an author; she has written several books on European royalty. She does lecture tours as well as supporting her husband in his public duties.

Baroness Marie Christine Anna Agnes Hedwig Ida von Reibnitz was born in Karlsbad, a town then in German-populated Sudetenland and now known as Karlovy Vary in the Czech Republic. By birth, she is a member of the Reibnitz family, uradel Silesian nobility who can trace their noble ancestry since the 13th century. Princess Michael of Kent is the younger daughter of Baron Günther Hubertus von Reibnitz by his second wife Countess Maria Anna Carolina Franziska Walburga Bernadette.