The name comes from By-the-ford, but a ford between East-the-water and the town must have been rather perilous, and only possible at low-tide. In the early part of the fourteenth century some of the chief inhabitants resolved to build a bridge, but several efforts were made in vain, for they were always thwarted by failure to find a firm enough foundation. Then Sir Richard Gurney, priest of the place, was 'admonished by a vision ... to begin that excellent work ... where he should find a stone fixed in the ground.' This dream he thought nothing of, 'until, walking by the river, he espied such a stone or rock there rolled and fixed firmly, which he never remembered to have seen formerly,' and was hereby convinced 'that his dream was no other than an heavenly inspiration.' The whole neighbourhood combined to help, the rich sending money and lending the services of their workmen, and the poor giving such time and labour as they could afford. The bridge, which has since been widened, is a very fine one, of twenty-four arches. Westcote says: 'A bark of 60 tons (without masts) may pass and repass with the tide, which flows near five miles above it.'

Gifts and bequests were made to the bridge, and the funds belonging to it became so large, and the business connected with them so important, that in 1758 a hall was built for the use of the feoffees, and decorated with the royal arms and the arms of the bridge.

St Mary's Church was built about the same date as the bridge, but about forty years ago all but the tower was pulled down and rebuilt. It had suffered considerably from the ravages of the Reformers, whose horror of ritualism reached the point of throwing the font out of doors, whereupon 'one schismatic,' more crazy than the rest, took it, says Watkins, in wrath, 'for the purpose of a trough for his swine to feed out of; and if he had had his deserts, he would have made one of their company.' The font was probably rescued by some pious person, for the one now in the church is a fine Norman one, with cable moulding.

In this church was baptized 'Raleigh,' the Indian brought back by Sir Richard Grenville from Carolina, and called after the great Sir Walter, who was doing much for that country. Sir Richard kept 'Raleigh' in his own house, and the dark stranger must have caused great chattering and excitement among the children and some of their elders in the town, but he did not survive transplantation, and a year later was buried in Bideford Churchyard. In the register he is described as a native of Wynganditoia.

On the south side of the church is the tomb of Thomas Grenville, who lies in armour, with a dog—not, as on most monuments, at his feet, but by his side. On the tomb are various coats of arms, and over it rises an arch ornamented with high stone tracery. A curious screen between the tower and the church has been made from the old carved bench-ends. Most of the subjects are grotesque, and on some of the panels are gnome-like heads, with long beards, big hats, and impudent, leering expressions.

In the churchyard is a tombstone with this epitaph:

'Here lies the body of Mary Sexton,
Who pleased many a man, but never vex'd one,
Not like the woman who lies under the next stone.'

Nowadays there is not much foreign trade, although a few vessels with outlandish names may be seen lying stranded at low-water alongside the quay. But Bideford had a full share of the prosperity that Devonshire ports enjoyed in the reign of Queen Elizabeth. The merchants were encouraged by Sir Richard Grenville, who, fired by the 'gallant and ingenious' Sir Walter Raleigh, ventured first fortune and then himself in commanding an expedition planned by his friend and kinsman. The expedition did not meet with great success in its main object, which was to establish a colony for the settlers, who, finding insurmountable hardships and difficulties, were all brought home later by Sir Francis Drake; but a Spanish treasure-ship of immense wealth was captured on the way back. It was said that in different ventures 'Bideford, in consequence of its lord, had some share, but chiefly with respect to its mariners.' So, after Sir Richard had fought his splendid last fight, and when his immediate influence was gone, independent merchants and mariners went on to fresh enterprises, and commerce continued to increase. Trading with Spain for wool soon became an important branch, but of still greater consequence was the trade with Newfoundland. When William and Mary reigned, Bideford was sending more ships there than any other port in the kingdom but London and—strange to say—Topsham. In the next reign the merchants suffered immense losses from French privateers, who, making the island of Lundy their headquarters, spied almost every ship that passed up and down the Bristol Channel. To them, Bideford or Barnstaple Bay was 'emphatically the Golden Bay, from the great number of valuable prizes which they captured on it.' Traffic with America had, however, greatly declined, before it was killed by the War of Independence.

In the history of Bideford the name of Grenville shines on many occasions. Both Devon and Cornwall claim this eminent family, their 'chiefest habitation' of Stow being in Cornwall, while, according to some authorities, their first dwelling-place in this part of the world was at Bideford.

Richard de Grenville, near the end of the fourteenth century, for his valour and courage in the Welsh wars was awarded the town and county of Neath, in Glamorgan. Being pious as well as brave, he devoted all this wealth to the Church, building and endowing a monastery for Cistercian monks. A quaint 'prophecy' regarding this family was said to have been found many years later in the Abbey of Neeth, where it was kept 'in a most curious box of jett, written in the year 1400.'