Battle of Pyhäjoki
The Battle of Pyhäjoki was a retreating action fought on 16 April 1808 , at Pyhäjoki in Northern Ostrobothnia during the Russian–Swedish war of 1808–09 . 
<triplet> Battle of Pyhäjoki <subj> 16 April 1808 <obj> point in time <subj> Pyhäjoki <obj> location <subj> war of 1808–09 <obj> part of <triplet> Pyhäjoki <subj> Northern Ostrobothnia <obj> located in the administrative territorial entity <triplet> war of 1808–09 <subj> Swedish <obj> participant