Niue, a sovereign state in free association with New Zealand, uses two official legal tender currencies. The New Zealand Dollar is the circulation currency for daily transactions, while the government also authorises legal tender coins in the Niue Dollar currency for collector's purposes.
A number of mints issue a large variety of commemorative and collector coins under the authority of Niue. These coins are dedicated to historical or general popular culture themes not related to Niue itself. Many of them are in standard bullion sizes - such as a tenth ounce of gold (abbreviated as 1/10 oz Au, where "Au" comes from the Latin word for gold, Aurum).
This coin was issued as part of a set of four gold coins featuring the Rohan noble family and is dedicated to Marie de Rohan.
The Rohan family were French aristocrats exiled by the French Revolution who decided to stay in the Austrian Empire. They purchased the Sychrov Castle in what is now the Czech Republic and owned it for 125 years until it was nationalised by the Socialist government in 1945.
Henri (II) de Rohan (21 August 1579 - 13 April 1638), Duke of Rohan and Prince of Léon, was a French soldier, writer and leader of the Huguenots. Having served in the army till the Peace of Vervins, he travelled for a considerable time over Europe, including England and Scotland, in the first of which countries he received the not unique honour of being called by Elizabeth I her knight, while in the second he was godfather at Charles I's christening. | 
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