Kraków Fire of 1850 
... that the Kraków Fire of 1850 destroyed approximately 10% of the city?
... that the <b id="mwAYc"><a href="./Kraków_Fire_of_1850" id="mwAYg" rel="mw:WikiLink" title="Kraków Fire of 1850">Kraków Fire of 1850 </a></b> <i id="mwAYk">(pictured)</i> destroyed approximately 10% of the city?