Diamond Jubilee
... that in 1900, the year before Edward, Prince of Wales ascended to the throne, he was the leading owner in British flat racing and his horse Diamond Jubilee won the Triple Crown?
... that in 1900, the year before <a href="./Edward_VII" id="mwD3w" rel="mw:WikiLink" title="Edward VII">Edward, Prince of Wales</a> ascended to the throne, he was the <a href="./British_flat_racing_Champion_Owner" id="mwD30" rel="mw:WikiLink" title="British flat racing Champion Owner">leading owner</a> in British <a class="mw-redirect" href="./Flat_racing" id="mwD34" rel="mw:WikiLink" title="Flat racing">flat racing</a> and his horse <b id="mwD38"><a href="./Diamond_Jubilee_(horse)" id="mwD4A" rel="mw:WikiLink" title="Diamond Jubilee (horse)">Diamond Jubilee</a></b> <i id="mwD4E">(pictured)</i> won the <a href="./Triple_Crown_of_Thoroughbred_Racing#United_Kingdom" id="mwD4I" rel="mw:WikiLink" title="Triple Crown of Thoroughbred Racing">Triple Crown</a>?