Matthew de Glendonwyn was a late 14th and early 15th century bishop of Glasgow. He was elected to the see

Episcopal See

An episcopal see is, in the original sense, the official seat of a bishop. This seat, which is also referred to as the bishop's cathedra, is placed in the bishop's principal church, which is therefore called the bishop's cathedral...

 after the death of Cardinal Walter Wardlaw

Walter Wardlaw

Walter Wardlaw was a 14th century bishop of Glasgow. He was the son of a Sir Henry Wardlaw of Torry, a middling knight of Fife. Before becoming bishop, Walter was a canon of Glasgow, a Master of Theology and archdeacon of Lothian. He was at the University of Paris, and a roll of the year 1349 has...

, his predecessor as bishop. He was elected sometime between Wardlaw's death in September and Matthew's first appearance as bishop-elect in December. Matthew was consecrated some months after his election, either in late 1387 or early 1388.

Matthew was a witness to charters of kings Robert II

Robert II of Scotland

Robert II became King of Scots in 1371 as the first monarch of the House of Stewart. He was the son of Walter Stewart, hereditary High Steward of Scotland and of Marjorie Bruce, daughter of Robert I and of his first wife Isabella of Mar...

 and Robert III

Robert III of Scotland

Robert III was King of Scots from 1390 to his death. His given name was John Stewart, and he was known primarily as the Earl of Carrick before ascending the throne at age 53...

, an occasional ambassador of the Scottish crown

Kingdom of Scotland

The Kingdom of Scotland was a Sovereign state in North-West Europe that existed from 843 until 1707. It occupied the northern third of the island of Great Britain and shared a land border to the south with the Kingdom of England...

 to England

Kingdom of England

The Kingdom of England was, from 927 to 1707, a sovereign state to the northwest of continental Europe. At its height, the Kingdom of England spanned the southern two-thirds of the island of Great Britain and several smaller outlying islands; what today comprises the legal jurisdiction of England...

, and a frequent arbiter in disputes concerning various religious establishments. On 21 May 1401, he introduced a tax in his diocese to improve the deficient ornamenta of the diocese (i.e. chasuble

Chasuble

The chasuble is the outermost liturgical vestment worn by clergy for the celebration of the Eucharist in Western-tradition Christian Churches that use full vestments, primarily in the Roman Catholic, Anglican and Lutheran churches, as well as in some parts of the United Methodist Church...

s, cope

Cope

The cope is a liturgical vestment, a very long mantle or cloak, open in front and fastened at the breast with a band or clasp. It may be of any liturgical colour....

s, dalmatic

Dalmatic

The dalmatic is a long wide-sleeved tunic, which serves as a liturgical vestment in the Roman Catholic, Lutheran, Anglican, and United Methodist Churches, which is sometimes worn by a deacon at the Mass or other services. Although infrequent, it may also be worn by bishops above the alb and below...

s, etc.). According to the Martyrology of Glasgow, he died on 10 May 1408.