The Traditionalist Catholic sources that give what they call the Papal Oath also claim, without citing any source, that all popes from Saint Agatho, who in the Liber Diurnus text is spoken of as already dead, to Pope Paul VI pronounced this text in the course of their coronation ceremonies.

The claim that Pope Agatho and his immediate successors took the alleged oath at their coronation ceremonies is also evidently false: popes of that time had neither crown nor, in consequence, coronation ( see Papal Tiara ).

These negotiations were undertaken by Leo's predecessor Agatho between the Holy See and Emperor Constantine IV.

Shortly after Agatho became Pope, St Wilfrid, Archbishop of York, arrived at Rome to invoke the authority of the Holy See on his behalf.

Constantine promised Agatho to abolish or reduce the tax that the popes had had to pay to the imperial treasury on their consecration.

Constantine had already promised Agatho to abolish or reduce the tax that the popes had had to pay to the imperial treasury on their consecration over the course of about a century.

In Constantinople, Constantine stayed in the Placidia Palace, which had formerly been occupied by Pope Vigilius in 547, the representatives of Pope Martin I, and Pope Agatho ( while attending the Third Council of Constantinople ).

Pope Agatho ruled in Wilfrid's favour, but Ecgfrith refused to honour the papal decree and instead imprisoned Wilfrid on his return to Northumbria before exiling him.

While a papal oath can be any oath taken by a pope, such as that which Pope Leo III took on 23 December 800 at a council held in Rome in the presence of Charlemagne declaring himself innocent of the charges brought against him, the term is used in particular for the " Papal Oath " ( see text below ) that some Traditionalist Catholics say was taken by the popes of the Catholic Church, starting with Pope Saint Agatho, who was elected on 27 June 678.

A traditionalist Catholic belief claims the existence of a Papal Oath sworn, at their coronation, by all popes from Pope Agatho to Pope Paul VI, but which since the abolition of the coronation ceremony is no longer used.

Saint Agatho was a Catholic pope from 26 June 678 to 10 January 681 and is venerated as a saint by both Roman Catholic and Eastern Orthodox churches.

Little is known of Agatho before his papacy.

A letter written by St. Gregory the Great to the abbot of St. Hermes in Palermo mentions an Agatho, a Greek born in Sicily to wealthy parents.

There is a possibility that Pope Agatho is this monk, but this would make him over 100 years old at the time of his election, and as such must be considered unlikely without further evidence to support a connection.

At a synod which Pope Agatho convoked in the Lateran to investigate the affair, it was decided that Wilfrid's diocese should indeed be divided, but that Wilfrid himself should name the bishops.

Agatho was quick to seize the olive branch offered by the Emperor.

Then a letter of Pope Agatho was read that explained the traditional belief of the Church that Christ was of two wills, divine and human.

The council agreed that Peter spoke through Agatho.

When the council ended in September 681 the decrees were sent to the Pope, but Agatho had died in January.

* August 17 – Pope Leo II succeeds Pope Agatho as the 80th pope.

* June 27 – Pope Agatho succeeds Pope Donus as the 79th pope.

He was a Sicilian by birth ( the son of a man named Paulus ), and succeeded Agatho.

Though elected pope a few days after the death of St. Agatho ( 10 January 681 ), he was not consecrated till after the lapse of a year and seven months ( 17 August 682 ).

Elected shortly after the death of Agatho, Leo was not consecrated for over a year and a half.

This council had been held in Constantinople against the Monothelite controversy, and had been presided over by the legates of Pope Agatho.

When the letter reached Rome, Donus had died, but his successor, Pope Agatho, agreed to the Emperor's suggestion and ordered councils held throughout the West so that legates could present the tradition of the Western Church.

During the council, a letter by Pope Agatho was read which asserted as the traditional belief of the Church that Christ was of two wills, divine and human.

They also undertook anti-Austrian propaganda and organized spies and saboteurs to operate within the empire's provinces.

Monet also undertook his first drawing lessons from Jacques-François Ochard, a former student of Jacques-Louis David.

He also undertook pioneering work with Samuel Lake on steam trawling whilst living in the town.

He also undertook diplomatic missions to Venice and Naples.

The small team also undertook the exploration of the Roman wreck of Mahdia ( Tunisia ).

The Emperor also undertook some reorganization of the theme structure by creating new themata in the Aegean region.

Bloomfield undertook field research in 1925 among Plains Cree speakers in Saskatchewan at the Sweet Grass reserve, and also at the Star Blanket reserve, resulting in two volumes of texts and a posthumous lexicon.

He also undertook brief field work on Swampy Cree at The Pas, Manitoba.

Upon leaving school and with his family relocated in Conwy, Lemmy undertook menial jobs including working at the local Hotpoint factory while also playing guitar for local bands, such as The Sundowners, and spending time at a horse riding school.

With or without the Pope's blessing, Sweden also undertook several crusades against Orthodox Novgorod.

In January 1131, he had also a favourable interview with Henry I of England, and in August 1132 Lothar III undertook an expedition to Italy for the double purpose of setting aside Anacletus as antipope and of being crowned by Innocent.

Pope Pius X also undertook a revision of the Roman Missal, which was published and declared typical by his successor Pope Benedict XV on 25 July 1920.

He also undertook a mission to the Arabs with whom, according to the " Vita ", he held discussions.

He also undertook analyses of the mineral content of a number of spa waters in England and abroad, notably at the medicinal spa at Caldas da Rainha in Portugal.

He also critically undertook the theme of the romantic theatre ( Z. Krasiński, J. Słowacki ) and portrayed a new concept of power and a human being created by other people.

The government also undertook nationalization programmes and the expansion of the public sector and the welfare state.

Telford also undertook highway works in the Scottish Lowlands, including of new roads and numerous bridges, ranging from a 112 ft ( 34 m ) span stone bridge across the Dee at Tongueland in Kirkcudbright ( 1805 – 1806 ) to the 129 ft ( 39 m ) tall Cartland Crags bridge near Lanark ( 1822 ).

He also undertook private studies with André Gedalge, whom he later stated was responsible for " the most valuable elements of my technique.

Later he acted as a private tutor to a handicapped child there and also undertook further tramping expeditions, culminating in a stint working in the Kent hop fields in August and September 1931.

Allende also undertook Project Cybersyn, a system of networked telex machines and computers.

Some male practitioners also opposed the involvement of medical men like themselves in midwifery, and even went as far as to say that men-midwives only undertook midwifery to solely for perverse erotic satisfaction.

The Alsnö stadga ( Ordinance of Alsnö ) from 1279 or 1280 also gave anyone who undertook to provide the Crown with a mounted warrior ( knight ) and a warhorse, the freedom from certain taxes ( such a liberty was called frälse in Swedish ).

In late November, Khabarov's people undertook a three-day campaign against the local chief Zhakshur ( Жакшур ) ( whose name is also known in a more Russian version, Zaksor ( Заксор )), collecting a large amount of tribute and announcing that the locals were now subjects of the Russian Czar.

Not only did she fulfil this promise, but she also undertook to enroll him with the best painting master in Livorno, Guglielmo Micheli.