It is part of the legal name of the church, however.
Roman Catholic (term) - Wikipedia
Roman Catholic is a term sometimes used to differentiate members of the
Catholic Church in
full communion with the
Pope in
Rome from other
Christians, especially those who also self-identify as
"Catholic", such as
Anglo-Catholics and
Independent Catholics. The term is not an official title used by the
Vatican or bishops in union with the Pope as a designation for their faith or institution. It is instead a term that became common among non-Catholics, especially in English, which is now occasionally used by Roman Catholic officials.
[1][2]
In Henrys time, the church was already almost 1500 years old and did not owe its origins to anything connected with the church at Rome.
These developments amount to creating a new church no more or less than saying that your (RC)church was created by the Vatican II council of a half-century ago. After all, many changes in policy were made at that time, so we might say that your church was a new church then, different from the one that came before it.
Henry remained a Catholic until his death and was never declared to be a heretic by the Papacy, not even after the Papal Church finally broke away from the Church of England.
Roman Catholics really should investigate the history before they start talking to us about it.
Supreme Head of the Church of England - Wikipedia
The
Supreme Head of the Church of England was a title created in 1531
[1] for King
Henry VIII of England, who was responsible for the foundation of the
English Protestant church that broke away from the authority of the
Roman Catholic Church after the
Pope excommunicated Henry in 1533 over his divorce from
Catherine of Aragon. The
Act of Supremacy of 1534 confirmed the King's status as having supremacy over the church and required the nobility to swear an oath recognising Henry's supremacy.
[1] By 1536, Henry had broken with Rome, seized the church's assets in England and declared the
Church of England as the
established church with himself as its head. Henry's daughter,
Queen Mary I, a staunch Catholic, attempted to restore the English church's allegiance to the Pope and repealed the Act of Supremacy in 1555.
[2] Her half-sister, the Protestant
Elizabeth I, took the throne in 1558 and the next year,
Parliament passed the
Act of Supremacy of 1559 that restored the original act.
[3] The new
Oath of Supremacy that nobles were required to swear gave the Queen's title as
Supreme Governor of the church rather than
Supreme Head, to avoid the charge that the monarchy was claiming divinity or usurping Christ, whom the Bible explicitly identifies as
Head of the Church.
History of the Church of England - Wikipedia
The formal history of the
Church of England is traditionally dated by the Church to the
Gregorian mission to
Spain by
Saint Augustine of Canterbury in
AD 597.
[1] As a result of Augustine's mission,
Christianity in England, from Anglican (English) perspective, came under the authority of the
Pope. However, in 1534
King Henry VIII declared himself to be supreme head of the Church of England. This resulted in a
schism with the Papacy. As a result of this schism, many non-Anglicans consider that the Church of England only existed from the 16th century
Protestant Reformation.
However,
Christianity arrived in the British Isles around AD 47 during the
Roman Empire according to Gildas's
De Excidio et Conquestu Britanniae. Archbishop
Restitutus and others are known to have attended the
Council of Arles in 314. Christianity developed roots in
Sub-Roman Britain and later
Ireland,
Scotland, and
Pictland. The
Anglo-Saxons (Germanic pagans who progressively seized British territory) during the 5th, 6th and 7th centuries, established a small number of kingdoms and evangelisation of the Anglo-Saxons was carried out by the successors of the Gregorian mission and by Celtic missionaries from Scotland. The
church in Wales remained isolated and was only brought within the jurisdiction of English bishops several centuries later.
The Church of England became the established church by an Act of Parliament in the
Act of Supremacy, beginning a series of events known as the
English Reformation.
[2] During the reign of
Queen Mary I and
King Philip, the church was fully
restored under Rome in 1555. However, the pope's authority was again explicitly rejected after the accession of
Queen Elizabeth I when the
Act of Supremacy 1558 was passed. Catholic and Reformed factions vied for determining the doctrines and worship of the church. This ended with the 1558
Elizabethan Settlement, which developed the understanding that the church was to be "both
Catholic and
Reformed".
[3]