Princess Marie was born on 14th April 1940 in Prague, the daughter of Count Ferdinand Kinsky of Wchinitz and Tettau and his wife Countess Henriette Caroline of Ledebur-Wicheln. She married her distant cousin, Prince Hans-Adam II 'von und zu' Liechtenstein at St. Florin's Cathedral in Vaduz on 30th July 1967. They had four children, namely, Hereditary Prince Alois, Prince Maximilian, Prince Constantin, and Princess Tatjana. Princess Marie worked for many organizations in Liechtenstein and especially paid attention to the fields of education, culture and arts. She was president of the Liechtenstein Red Cross from 1985 to 2015.
Hans Adam's distant predecessor, Prince Alois II, also married into the Kinsky family, this time Countess Franziska de Paula Kinsky von Wchinitz und Tettau, which made Marie and Hans Adam distant cousins. (In fact, Hans Adam is descended form Alois and Franziska three times. Twice through his paternal line and the third time through his maternal grandmother!) The Kinsky Arms have therefore featured in the Liechtenstein Royal Family a number of times.
In all reality, the Kinsky family's history can be traced back to around the year 1150 while they were firstly mentioned on 16th May 1237. The family's original name was Wchynsky after the village of Vchynice (or Wchinitz) in northern Bohemia. It later evolved via Chynsky to Kinsky, the latter being used since at least 1628.
Also in reality, the Royal Family of Liechtenstein effectively use just the Princely Arms.
Our condolences and deepest sympathies to the Royal Family of Liechtenstein.