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Mormaer of Caithness
Raven Banner.svg
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Creation date 10th century?
Monarch Constantine II of Scotland?
Peerage Peerage of Scotland
First holder Donnchad?
Last holder Maol Íosa
Status Extinct
Extinction date 1350
Former seat(s) Braal Castle

The Mormaer of Caithness was a special title for a powerful leader in a region called Caithness, in northern Scotland. This title was like being a local ruler or an earl. For a long time, from the Viking Age until 1350, this title was mostly held by important people from Norway. These leaders were also the Earls of Orkney.

This meant they were vassals, or loyal supporters, to two different kings at the same time. They were loyal to the King of Norway for Orkney and to the King of Scots for Caithness. This was very unusual in history!

The first person mentioned with this title was a Scottish ruler named Donnchad. This was around the early 900s. However, it's not clear how much control the Scottish king really had over Caithness back then. By the early 1000s, the Earls of Orkney, who were Norse, became the main rulers of Caithness.

Understanding the Mormaer Title

A mormaer was a powerful ruler in early medieval Scotland. It's similar to an earl. They controlled a large area of land called a mormaerdom. The Mormaer of Caithness was a very important position because it connected Scotland with the Norse lands of Orkney.

The Unique Dual Loyalty

The Earls of Orkney, who also held the Caithness title, had a tricky job. They had to be loyal to both the King of Norway and the King of Scots. This meant they had to balance their duties and avoid upsetting either powerful ruler. No other family of earls in history had this kind of double loyalty.

Caithness and Orkney: A Shared History

Caithness Brit Isles Sect 1
Location of Caithness to the north of the Scottish mainland, with the archipelagoes of Orkney and Shetland to the north and the Hebrides to the west.

The Pentland Firth is a stretch of water between Caithness and Orkney. For the Norse people, who were skilled sailors, this water didn't divide them. Instead, it helped connect Caithness and Orkney. They often traveled across it, treating both areas as one big region.

For example, in the 1100s, a Norwegian king could easily capture the Earl of Orkney from his home in Thurso, Caithness. At the same time, the Scottish king, David I, also had influence in both areas. He used the Church and other peaceful ways to show his power.

After a big battle called the Battle of Largs in 1263 and a peace treaty in 1266, the border became much clearer. The Pentland Firth then became more like a "state border" between Scotland and Norway.

Sutherland's Connection to Caithness

For most of its history, the area known as Sutherland was part of the Caithness mormaerdom. However, King Alexander II later took Sutherland away from Magnus, who was an Earl of Orkney and Caithness. He gave it to other people for reasons that are not fully known today.

Early Mormaers of Caithness

It's hard to know exact dates for the earliest mormaers because old records are often missing or unclear. However, we do have some information about these early rulers.

Dates Mormaer Notes
Early 10th century Donnchad of Caithness Donnchad was married to Groa, the daughter of a Viking leader named Thorstein Olafsson.
Mid 10th century Uncertain Thorfinn Torf-Einarsson was a powerful Earl of Orkney. He was married to Donnchad's daughter, Gruaidh. We don't know for sure if he was also Mormaer of Caithness.
978–980s? Skuli Thorfinnsson Son of Gruaidh and Thorfinn. He was supported by the Scottish King Kenneth II. Skuli was defeated in battle by his brother Ljot in Caithness.
980s? Ljot Thorfinnsson Ljot defeated Skuli, but this angered the Scots. Ljot died from his wounds after another battle near Wick.
980s Hlodvir Thorfinnsson He became Earl of Orkney after Ljot. He was buried in Caithness, which suggests he had control over the area.
991 to 1014 Sigurd Hlodvirsson Earl of Orkney. He was strong enough to protect Caithness from the Scots. He died in a famous battle in Ireland in 1014.
1014–c.1060 Thorfinn Sigurdsson When his father Sigurd died, Thorfinn's older brothers divided Orkney. His grandfather, the King of Scotland, made Thorfinn the ruler of Caithness and Sutherland.
Mid-11th century Madadhan of Caithness The Orkneyinga saga (a Norse story) says "Muddan" became the leader of Caithness. He was killed by Thorkel, an ally of Thorfinn Sigurdsson.
Mid-11th century Thorfinn Sigurdsson? It's likely that Thorfinn regained control of Caithness after Muddan's death, as he was a very powerful earl.
To 1098 Paul and Erlend Thorfinnsson? After Earl Thorfinn's death, his sons Paul and Erlend ruled Orkney together. It's not clear what happened to the Caithness title during this time.

A Short Norwegian Takeover

Kong-magnus-berrfott-menn
Magnus Barefoot's army in Ireland, as imagined in Gustav Storm's 1899 edition of Heimskringla

In 1098, Magnus Barefoot, the King of Norway, took control of Orkney. He removed the Thorfinnsson brothers and put his own young son, Sigurd Magnusson, in charge. King Magnus also led strong military campaigns in other parts of Scotland and Ireland.

It's likely that King Magnus had control over Caithness too, before he died in 1103. However, Norway didn't officially take over Caithness. It remained under the Scottish crown. It's possible that local Scottish leaders briefly regained the title during this time.

Later Norse Rulers

Dates Mormaer Notes
c.1104 - c.1105 Haakon Paulsson Grandson of Thorfinn Sigurdsson. He was made Earl of Orkney by the young King Sigurd of Norway and also claimed Caithness.
c. 1105 - 1114 Magnus Erlendsson Haakon Paulsson's cousin. He was a joint Earl of Orkney until Haakon killed him. Caithness was part of his lands.
1114-1123 Haakon Paulsson As the sole Earl of Orkney, he likely regained control of Caithness after Magnus's death.
1123-1128 Harald Haakonsson Son of Haakon Paulsson. He "held Caithness from the king of Scots."
1128-1136 Paul Haakonsson Half-brother of Harald. He ruled Orkney and probably Caithness, sometimes with Harald, then alone, and briefly with Rögnvald Kali Kolsson.
1136-1151 (jointly 1139-58) Rögnvald Kali Kolsson Earl of Orkney and likely ruler of Caithness for much of his time.
1151-54 Erlend Haraldsson Son of Harald Haakonsson. He got half of his father's lands in Caithness from the Scottish King Malcolm IV of Scotland when Earl Rögnvald went on a pilgrimage.
1139-1206 Harald "the Old" Maddadsson Grandson of Haakon Paulsson. He became a joint Earl of Orkney as a child. He was captured in Thurso by the King of Norway but later became the sole ruler of Orkney and Caithness until his death.
1198 Harald "the Younger" Eiriksson Grandson of Rögnvald Kali Kolsson. The Scottish King William the Lion gave him half of Caithness. However, he died that same year in a fight with Harald Maddadsson.
1206-1214 David Haraldsson Son of Harald "the Old." He ruled Caithness and Orkney together with his brother Jon.
1214-1230 Jon Haraldsson Ruled jointly with his brother David, then alone. He was murdered in Thurso.
Rǫgnvaldr Guðrøðarson (British Library Cotton MS Julius A VII, folio 40v)
Rognvaldr Gudrodsson's name as it appears on folio 40v of British Library Cotton MS Julius A VII (the Chronicle of Mann): "Reginaldus filjus Godredi".

Around 1200, after Harald the Younger's death, the Scottish king asked Rognvaldr Gudrodsson, the King of the Isles, to take Caithness for Scotland. Rognvaldr marched north, took control, and left three stewards (managers) in charge. He was related to the Norse earls of Orkney. There's no clear proof he was officially made Mormaer of Caithness, but he did manage the area for a short time. Harald Maddadsson soon regained full control.

Rulers from Angus and Strathearn Families

After Jon Haraldsson died in 1230, there were no direct male heirs. Two different families claimed the title. In 1232, the people claiming the title for Orkney were lost at sea. So, the Caithness title eventually went to a family connected to the Earl of Angus.

Dates Mormaer Notes
1235 Walter Comyn, Mormaer of Menteith Comyn signed a document as "Earl of Caithness" in 1235. This may have been a temporary role.
1236-1239 Magnus II Also Earl of Orkney. He was given Caithness in two parts. His family background is not fully clear. King Alexander II took Sutherland from Magnus and gave it to someone else.
1239?-1256 Gilbert Gilbert (also known as Gille Brigte) ruled both Caithness and Orkney. His exact relationship to Magnus is not clear.
1256-1273 Magnus Gilbertsson Son of Gilbert. Magnus supported the King of Norway in a war against Scotland. In 1263, Caithness made a separate peace treaty and paid a fine.
1273-1284 Magnus Magnusson Son of Magnus Gilbertsson.
1284-1303 Jón Magnússon Son of Magnus Gilbertsson. He was careful to balance his loyalty to both Scottish and Norwegian kings.
1303-1320 Magnus Jónsson Son of Jón Magnússon. He was a minor (underage) when his father died. He signed an important Scottish document called the Declaration of Arbroath in 1320.
1321-1330 Uncertain There was a gap in the records after Magnus Jónsson's death. It's possible he had a young heir who died.
1330-1350 Maol Íosa After Magnus Jónsson, the title was given to Maol Íosa, who was the Mormaer of Strathearn. He was a distant relative of Earl Gilbert. He ruled both Orkney and Caithness. He had several daughters but no sons.

The End of the Mormaerdom

Braal Castle
The ruins of Braal Castle, the caput of the Caithness mormaers which was given over to the Scottish crown in 1375 by Alexander of Ard.

After Maol Íosa, there was no Mormaer of Caithness from about 1350 to 1379. Alexander of Ard, who was Maol Íosa's grandson, was considered the rightful heir. However, he gave up his claim to King Robert II in 1375. He might have done this for money or for the king's support in becoming Earl of Orkney.

The powerful William III, Earl of Ross then took control in Caithness. After this time, the title "Earl of Caithness" was given to David Stewart, 1st Earl of Caithness. He was a younger son of King Robert II. From then on, the leaders of Caithness were called "Earls" instead of "Mormaers."

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