An oil painting of the Norfolk Broads by the Norwich-born artist whose pictures inspired Prince Charles to take up painting has sold for £68,500 at Christie's in London.

Yesterday's sale of Edward Seago's 26in x 36in picture Summer on the Norfolk Boards came shortly before the 40th anniversary of his death, on January 19, 1974.

Describing the picture, Christie's said: 'Seago's typically low lying horizon shows off the summer weather at its best, the clouds of the sky, mirrored in the billowing sails of the boats below. Full of colour and movement, the dappled water hints at a light breeze, as the rushes on the banks of the Broads respond accordingly. An undeniable sense of calm and of space seems to be intended here, as the viewer's gaze is drawn through the sail boats, across to the land beyond.'

The picture's pre-auction estimate was £50,000-70,000, while the current auction record for a Seago painting is £318,850, paid in 2004 for his 1936 oil painting, Derby Day.