The district around Snowdon), but some regarded him as a bastard, and Gwynedd was also claimed by other members of his family.
In 1277, however, the king grew tired of waiting, invaded the principality and drove his recalcitrant vassal up into the fastnesses of Snowdon, where famine compelled him to surrender as winter was beginning.
On his death the southern rebels submitted, but David his brother continued the struggle for three months longer in the Snowdon district, till his last bands were scattered and he himself taken prisoner.
The Vaenol slate quarries are here, and hence is the easiest ascent of Snowdon, with a railway to the summit.
Wales, on the other hand, projecting into the western sea between Liverpool Bay and the estuary of the Dee on the north, and the Bristol Channel on the south, is practically all mountainous, and has in Snowdon, in the north-west, a higher summit than any in England-3560 ft.