Investiture Controversy in the context of "Pope Gregory VII"

The history of Rome includes the history of the city of Rome as well as the civilisation of ancient Rome. Roman history has been influential on the modern world, especially in the history of the Catholic Church, and Roman law has influenced many modern legal systems. Roman history can be divided into the following periods:

• Pre-historical and early Rome, covering Rome's earliest inhabitants and the legend of its founding by Romulus
• The period of Etruscan dominance and the regal period, in which, according to tradition, Romulus was the first of seven kings
• The Roman Republic, which commenced in 509 BC when kings were replaced with rule by elected magistrates. The period was marked by vast expansion of Roman territory. During the 5th century BC, Rome gained regional dominance in Latium. With the Punic Wars from 264 to 146 BC, ancient Rome gained dominance over the Western Mediterranean, displacing Carthage as the dominant regional power.
• The Roman Empire followed the Republic, which waned with the rise of Julius Caesar, and by all measures concluded after a period of civil war and the victory of Caesar's adopted son, Octavian, in 27 BC over Mark Antony.
• The Western Roman Empire collapsed in 476 after the city was conquered by the Ostrogothic Kingdom. Consequently, Rome's power declined, and it eventually became part of the Eastern Roman Empire, as the Duchy of Rome, from the 6th to 8th centuries. At this time, the city was reduced to a fraction of its former size, being sacked several times in the 5th to 6th centuries, even temporarily depopulated entirely.
• Medieval Rome is characterised by a break with Constantinople and the formation of the Papal States. The Papacy struggled to retain influence in the emerging Holy Roman Empire, and during the saeculum obscurum, the population of Rome fell to as low as 30,000 inhabitants. Following the East–West Schism and the limited success in the Investiture Controversy, the Papacy did gain considerable influence in the High Middle Ages, but with the Avignon Papacy and the Western Schism, the city of Rome was reduced to irrelevance, its population falling below 20,000. Rome's decline into complete irrelevance during the medieval period, with the associated lack of construction activity, assured the survival of very significant ancient Roman material remains in the centre of the city, some abandoned and others continuing in use.
• The Roman Renaissance occurred in the 15th century, when Rome replaced Florence as the centre of artistic and cultural influence. The Roman Renaissance was cut short abruptly with the devastation of the city in 1527, but the Papacy reasserted itself in the Counter-Reformation, and the city continued to flourish during the early modern period. Rome was annexed by Napoleon and was part of the First French Empire from 1809 to 1814.
• Modern history, the period from the 19th century to the present. Rome came under siege again after the Allied invasion of Italy and was bombed several times. It was declared an open city on 14 August 1943. Rome became the capital of the Italian Republic (established in 1946). With a population of 4.4 million (as of 2015; 2.9 million within city limits), it is the largest city in Italy. It is among the largest urban areas of the European Union and classified as a global city.

Matilda of Tuscany (Italian: Matilde di Toscana; Latin: Matilda or Mathilda; c. 1046 – 24 July 1115), or Matilda of Canossa (Italian: Matilde di Canossa [maˈtilde di kaˈnɔssa]), also referred to as la Gran Contessa ("the Great Countess"), was a member of the House of Canossa (also known as the Attonids) in the second half of the eleventh century. Matilda was one of the most important governing figures of the Italian Middle Ages. She reigned in a time of constant battles, political intrigues, and excommunications by the Church.

She ruled as a feudal margravine and, as a relative of the imperial Salian dynasty, she brokered a settlement in the so-called Investiture Controversy. In this extensive conflict with the emerging reform Papacy over the relationship between spiritual (sacerdotium) and secular (regnum) power, Pope Gregory VII dismissed and excommunicated the Holy Roman Emperor Henry IV (then King of the Romans) in 1076. At the same time, Matilda came into possession of a substantial territory that included present-day Lombardy, Emilia, Romagna, and Tuscany. She made the Canossa Castle, in the Apennines south west of Reggio Emilia, the centre of her domains.

The concept of Germany as a distinct region in Central Europe can be traced to Julius Caesar, who referred to the unconquered area east of the Rhine as Germania, thus distinguishing it from Gaul. The victory of the Germanic tribes in the Battle of the Teutoburg Forest (AD 9) prevented annexation by the Roman Empire, although the Roman provinces of Germania Superior and Germania Inferior were established along the Rhine. Following the Fall of the Western Roman Empire, the Franks conquered the other West Germanic tribes. When the Frankish Empire was divided among Charles the Great's heirs in 843, the eastern part became East Francia, and later Kingdom of Germany. In 962, Otto I became the first Holy Roman Emperor of the Holy Roman Empire, the medieval German state.

During the High Middle Ages, the Hanseatic League, dominated by German port cities, established itself along the Baltic and North Seas. The development of a crusading element within German Christendom led to the Northern Crusades and the establishment of the State of the Teutonic Order along the Southern Baltic coast in what would later become Prussia. In the Investiture Controversy, the German Emperors resisted Catholic Church authority. In the Late Middle Ages, the regional dukes, princes, and bishops gained power at the expense of the emperors. Martin Luther led the Protestant Reformation within the Catholic Church after 1517, as the northern and eastern states became Protestant, while most of the southern and western states remained Catholic. The Thirty Years' War, a civil war from 1618 to 1648 brought tremendous destruction to the Holy Roman Empire. The estates of the empire attained great autonomy in the Peace of Westphalia, the most important being Austria, Prussia, Bavaria and Saxony. With the Napoleonic Wars, feudalism fell away and the Holy Roman Empire was dissolved in 1806. Napoleon established the Confederation of the Rhine as a German puppet state, but after the French defeat, the German Confederation was established under Austrian presidency. The German revolutions of 1848–1849 failed but the Industrial Revolution modernized the German economy, leading to rapid urban growth and the emergence of the socialist movement. Prussia, with its capital Berlin, grew in power. German universities became world-class centers for science and humanities, while music and art flourished. The unification of Germany was achieved under the leadership of the Chancellor Otto von Bismarck with the formation of the German Empire in 1871. The new Reichstag, an elected parliament, had only a limited role in the imperial government. Germany joined the other powers in colonial expansion in Africa and the Pacific.

The Kingdom of Germany or German Kingdom (Latin: regnum Teutonicorum 'kingdom of the Germans', regnum Teutonicum 'German kingdom', regnum Alamanie "kingdom of Germany", German: Deutsches Königreich) was the mostly Germanic language-speaking East Frankish kingdom, which was formed by the Treaty of Verdun in 843. The king was elected, initially by the rulers of the stem duchies, who generally chose one of their own. After 962, when Otto I was crowned emperor, East Francia formed the bulk of the Holy Roman Empire, which also included the Kingdom of Italy and, after 1032, the Kingdom of Burgundy.

Like medieval England and medieval France, medieval Germany consolidated from a conglomerate of smaller tribes, nations or polities by the High Middle Ages. The term rex teutonicorum ('king of the Germans') first came into use in Italy around the year 1000. It was popularized by the chancery of Pope Gregory VII during the Investiture Controversy (late 11th century), perhaps as a polemical tool against Emperor Henry IV. In the 12th century, in order to stress the imperial and transnational character of their office, the emperors began to employ the title rex Romanorum (king of the Romans) on their election.

Anselm of Canterbury OSB (/ˈænsɛlm/; 1033/4–1109), also known as Anselm of Aosta (French: Anselme d'Aoste, Italian: Anselmo d'Aosta) after his birthplace and Anselm of Bec (French: Anselme du Bec) after his monastery, was an Italian Benedictine monk, abbot, philosopher, and theologian of the Catholic Church, who served as Archbishop of Canterbury from 1093 to 1109.

As Archbishop of Canterbury, he defended the church's interests in England amid the Investiture Controversy. For his resistance to the English kings William II and Henry I, he was exiled twice: once from 1097 to 1100 and then from 1105 to 1107. While in exile, he helped guide the Greek Catholic bishops of southern Italy to adopt Roman Rites at the Council of Bari. He worked for the primacy of Canterbury over the Archbishop of York and over the bishops of Wales, and at his death he appeared to have been successful; however, Pope Paschal II later reversed the papal decisions on the matter and restored York's earlier status.