On death of William IV of Holland, his widow Anne, sister of George
II, acts as Regent for the infant heir William, who is only three
years old. She proves to be only the first of many regents, since
she herself dies in 1759 when her son is still only ten.
Citation:
Editors. "Death of William IV of Holland".
The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17592, accessed 24 May 2013.]