Edward I (1272-1307) was known as a formidable warrior king who sought to expand English territory. After becoming king in 1272, he vowed not to wear his crown until Wales and Scotland were conquered. He defeated Llywelyn ap Gruffyd in Wales, establishing English rule, and brutally executed Welsh rebels. Edward then invaded Scotland in 1296, declaring himself king, but lacked funds to maintain control as Scottish rebellions emerged led by William Wallace and Robert the Bruce. To raise money, Edward called the first Model Parliament in 1295, establishing its role in approving royal taxation.