In 1276–77 and 1282–83, King Edward I led two military campaigns in Wales to defeat the Welsh princes and bring Wales under English rule.
Ym 1276-77 a 1282-83, arweiniodd y Brenin Edward I ddwy ymgyrch filwrol yng Nghymru i drechu tywysogion Cymru a sefydlu rheolaeth y Saeson.