The forthcoming Royal wedding certainly has a wide variety of music -
Gretchaninov, Grieg, Finzi, Albinoni, ...  and not all the composers
are dead!

   http://www.timesonline.co.uk/article/0,,19769-1548009,00.html

(I am having trouble getting a full list, mainly because
<http://www.princeofwales.gov.uk/> and similar are way behind with
their media information).

Alastair