 Kọ itẹsiwaju fun paragirafi yii - Mindaugas, Duke ti guusu Lithuania, wa laarin awọn duches agba marun ti a mẹnuba ninu adehun pẹlu Galicia  Volhynia. Ìwé Livonian Rhymed Chronicle, sọ wípé ní àárín ọdún 1230s, Mindaugas ti gba agbára gíga jùlọ ní gbogbo Lithuania. Ní ọdún 1236, àwọn Samogitians, tí Vykintas darí, ṣẹgun Livonian Order nínú Ogun Saule : ó ṣe tán. A fi agbara mu aṣẹ naa lati di ẹka ti awọn Knights Teutonic ni Prussia, ṣiṣe Samogitia, ila ti ilẹ ti o ya Livonia kuro ni Prussia, ibi-afẹde akọkọ ti awọn aṣẹ mejeeji. Ogun naa pese isinmi ninu awọn ogun pẹlu awọn Knights, ati Lithuania lo anfani ipo yii, siseto awọn ikọlu si awọn agbegbe Ruthenian ati sisopọ Navahrudak ati Hrodna. 