Alexander the Mason, sometimes called Alexander the Mason III, was a

master mason Freemasonry or Masonry refers to fraternal organisations that trace their origins to the local guilds of stonemasons that, from the end of the 13th century, regulated the qualifications of stonemasons and their interaction with authorities ...

who designed the nave and crossing of

Lincoln Cathedral Lincoln Cathedral, Lincoln Minster, or the Cathedral Church of the Blessed Virgin Mary of Lincoln and sometimes St Mary's Cathedral, in Lincoln, England, is a Grade I listed cathedral and is the seat of the Anglican Bishop of Lincoln. Constructio ...

in the mid 13th century. Following Geoffrey de Noiers as designer, Alexander designed the star-patterned vaulting of the nave, adding

tierceron In Gothic architecture, a lierne is a tertiary rib connecting one rib to another, as opposed to connecting to a springer, or to the central boss. The resulting construction is called a lierne vault or stellar vault (named after the star shape ge ...

ribs to decorate the vaulting, which had heretofore been relatively plain. The crossing vault, dating to 1238, was extensively elaborated, using eight spring points in the tower. Alexander designed the cathedral's screen front,

chapter house A chapter house or chapterhouse is a building or room that is part of a cathedral, monastery or collegiate church in which meetings are held. When attached to a cathedral, the cathedral chapter meets there. In monasteries, the whole communi ...

and Galilee porch. The chapter house at Worcester Cathedral is also attributed to Alexander, and he may have worked in France at

Le Mans Cathedral Le Mans Cathedral ( French: ''Cathédrale St-Julien du Mans'') is a Catholic church situated in Le Mans, France. The cathedral is dedicated to Saint Julian of Le Mans, the city's first bishop, who established Christianity in the area around the b ...

. Other churches in England attributed to Alexander are

St Wulfram's Church, Grantham St Wulfram's Church, Grantham, is the Anglican parish church of Grantham in Lincolnshire, England. The church is a Grade I listed building and has the second tallest spire in Lincolnshire after Louth's parish church. In his book ''England's ...

and St. Mary Magdalene, Newark-on-Trent.

References

{{reflist 13th-century English architects Lincoln Cathedral Architects from Lincolnshire