Alan of Walsingham

[1][2] He afterwards turned his attention to the study of architecture, and in 1321, when sub-prior of his convent, designed and began to build St Mary's Chapel (now Trinity Church), attached to the cathedral of Ely.

Early on the morning of 13 February 1322, the great tower of the Ely Cathedral fell, and destroyed the choir and other attached portions of the structure.

[3] Instead of rebuilding the four piers, which carried the Norman (square) tower, a weak point in cathedral construction, Alan advanced the supports, to the extent of one bay, into each arm of the cross; and by so doing he not only distributed the weight upon eight piers instead of four, but obtained a magnificent central octagonal hall, which he roofed with a dome surmounted by a tall lantern.

He subsequently rebuilt the bays of the choir, which had been ruined by the fall of the great tower, and these are admittedly amongst the most beautiful examples of Decorated, or Second Pointed, English Gothic architecture.

A similar honor was destined for Alan in 1361, but the choice of the convent was again overruled, and Simon Langham, afterwards Archbishop of Canterbury and Cardinal, was consecrated Bishop of Ely in his stead.

Alan of Walsingham's unique octagonal lantern at Ely Cathedral .