David of Grodno

David (Belarusian: Давыд Гарадзенскі, Lithuanian: Dovydas Gardiniškis, killed in 1326) was a castellan of Grodno and one of the most famous military commanders of Gediminas, Grand Duke of Lithuania.

He seems to have been a middleman between the pagan Gediminas and the Christian princes of the Rurikid family and frequently led in battle the united Lithuanian–Ruthenian armies.

David is mentioned for the first time in 1314 when he helped to relieve a siege of Navahradak by the Teutonic Order.

In response to the looting in Ladoga and Narva provinces, David, invited by Pskov nobles, led an expedition to Danish Estonia, an ally of the Order.

In 1326, he led the Lithuanian armies on the raid on Brandenburg and on the way back he was traitorously killed by a Masovian knight.