The Prussians give up their blockade of Olmütz, which began on 8th
May, after Prussian convoys bringing supplies to the besieging army
are attacked and destroyed by Imperial troops at the Moravian
village of Domstadtl.
Citation:
Editors. "Prussian blockade of Olmütz is defeated".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17724, accessed 19 June 2013.]