Machar was a 6th-century Irish

Irish people

The Irish people are an ethnic group who originate in Ireland, an island in northwestern Europe. Ireland has been populated for around 9,000 years , with the Irish people's earliest ancestors recorded having legends of being descended from groups such as the Nemedians, Fomorians, Fir Bolg, Tuatha...

 Saint

Saint

A saint is a holy person. In various religions, saints are people who are believed to have exceptional holiness.In Christian usage, "saint" refers to any believer who is "in Christ", and in whom Christ dwells, whether in heaven or in earth...

 active in Scotland.

Much of what is claimed to be known about St Machar derives from the Aberdeen Breviary

Aberdeen Breviary

The Aberdeen Breviary is a 16th-century Scottish Catholic breviary. It contains brief accounts of various Scottish saints. It was edited by William Elphinstone, and printed in Edinburgh in 1507 by Walter Chapman and Andrew Myllar....

, a work compiled in the late fifteenth to early sixteenth centuries, long after the traditional date of Machar's life. It is therefore hard to assess its reliability.

One recent theory is that St Machar and St Mungo were the same person, on the grounds of a possible link between their names (Colm Ó Baoill, St Machar - some linguistic light?, Innes Review XLIV, p. 1-13).

The Machar oil field in the North Sea

North Sea oil

North Sea oil is a mixture of hydrocarbons, comprising liquid oil and natural gas, produced from oil reservoirs beneath the North Sea.In the oil industry, the term "North Sea" often includes areas such as the Norwegian Sea and the area known as "West of Shetland", "the Atlantic Frontier" or "the...

is named after the saint.