Battle of Y Dalar Hir

Battle of Y Dalar Hir
	Part of the Second English Civil War
	; The foreshore near Y Dalar Hir
Date	5 June 1648
Location	Y Dalar Hir, near Llandegai, Caernarfonshire, Wales53°13′57″N 4°03′31″W / 53.232598°N 4.058478°W
Result	Parliamentarian victory
Belligerents
Royalists	Parliamentarians
Commanders and leaders
Sir John Owen	Colonel George Twisleton; Colonel John Carter
Strength
120 foot; 140 horse;	100 foot; 30 horse;
Casualties and losses
30 killed; c. 60 prisoners	30–40 killed

The Battle of Y Dalar Hir took place on 5 June 1648 in Caernarfonshire, North Wales, during the Second English Civil War. While little more than a skirmish, it had a significant effect on the local progress of the conflict.

Leading Welsh Royalist Sir John Owen of Clenennau mustered a group of 250-300 cavalry and foot in an attempt to raise North Wales in rebellion against Parliament; on 3 June he defeated local militia in a skirmish near Caernarfon and besieged Caernarfon Castle. Colonel George Twisleton, Parliamentarian governor of Denbigh, confronted Owen at Y Dalar Hir on the shore of the Menai Straits near Llandegai, where the Royalists were scattered and Owen captured, effectively ending the spread of the rebellion in North Wales.