Question: What Emperor, who was a member of the Solomonic Dynasty, proclaimed a revised constitution in November 1955 of the Empire of Ethiopia?

Context paragraphs:
Solomonic dynasty: The Solomonic dynasty, also known as the House of Solomon, is the former ruling Imperial House of the Ethiopian Empire.  Its members claim patrilineal descent from King Solomon of Israel and the Queen of Sheba.  Tradition asserts that the Queen gave birth to Menelik I after her biblically described visit to Solomon in Jerusalem.  In 1270, the Zagwe dynasty of Ethiopia was overthrown by Yekuno Amlak, who claimed descent from Solomon and initiated the Solomonic era of Ethiopia.  The dynasty would last until 1974, ended by a coup d'état and deposition of the emperor Haile Selassie.

Atse Hezqeyas: Hezqeyas was a member of the Solomonic dynasty who was proclaimed "nəgusä nägäst" of Ethiopia (1736 – 1737) by a group of notables opposed to Emperor Iyasu II.  Hezqeyas had been confined to the royal prison on Mount Wehni until freed by his supporters, and had little influence over the early events.

Susenyos I: Susenyos I (also Sissinios, in Greek, Ge'ez ሱስንዮስ "sūsinyōs"; throne name Malak Sagad III, Ge'ez መልአክ ሰገድ, "mal'ak sagad", Amh.  "mel'āk seged", "to whom the angel bows"; 1572 – 17 September 1632) was Emperor of Ethiopia from 1606 to 1632.  His father was "Abeto" (Prince) Fasilides, son of "Abeto" (Prince) Yakob, who was a son of Dawit II.  As a result, while some authorities list Susenyos as a member of the Solomonic dynasty, others consider him, instead of his son, Fasilides, as the founder of the Gondar line of the dynasty (ultimately a subset, however, of the Solomonic dynasty).

Yeshashework Yilma: Princess Yeshashework Yilma (died 1982) was the daughter of Dejazmatch Yilma Makonnen, governor of Harar and niece of Emperor Haile Selassie of Ethiopia.  Her mother Woizero Aselefech Wolde Hanna was the niece of Empress Taitu Bitul, consort of Emperor Menelik II of Ethiopia.  Through her paternal great-grandmother, she was a member of the Imperial Solomonic dynasty of Ethiopia.  Her father died while she was still very young.

Ethiopian historiography: Ethiopian historiography embodies the ancient, medieval, early modern and modern disciplines of recording the history of Ethiopia, including both native and foreign sources.  The roots of Ethiopian historical writing can be traced back to the ancient Kingdom of Aksum (c. 100 – c. 940 AD).  These early texts were written in either the Ethiopian Ge'ez script or the Greek alphabet, and included a variety of mediums such as manuscripts and epigraphic inscriptions on monumental stelae and obelisks documenting contemporary events.  The writing of history became an established genre in Ethiopian literature during the early Solomonic dynasty (1270–1974).  In this period, written histories were usually in the form of royal biographies and dynastic chronicles, supplemented by hagiographic literature and universal histories in the form of annals. Christian mythology became a linchpin of medieval Ethiopian historiography due to works such as the Orthodox "Kebra Nagast".  This reinforced the genealogical traditions of Ethiopia's Solomonic dynasty rulers, which asserted that they were descendants of Solomon, the legendary King of Israel.

1955 Constitution of Ethiopia: Emperor Haile Selassie proclaimed a revised constitution in November 1955 of the Empire of Ethiopia.  This constitution was prompted, like its 1931 predecessor, by a concern with international opinion.  Such opinion was particularly important at a time when some neighboring African states were rapidly advancing under European colonial tutelage and Ethiopia was pressing its claims internationally for the incorporation of Eritrea, where an elected parliament and more modern administration had existed since 1952.

Mengistu Haile Mariam: Mengistu Haile Mariam (Amharic: , pronounced ] ; born 21 May 1937) is an Ethiopian politician who was the leader of Ethiopia from 1977 to 1991.  He was the chairman of the Derg, the Communist military junta that governed Ethiopia, from 1977 to 1987, and the President of the People's Democratic Republic of Ethiopia from 1987 to 1991.  The Derg took power in the Ethiopian Revolution following the overthrow of Emperor Haile Selassie I in 1974, marking the end of the Solomonic dynasty which had ruled Ethiopia since the 13th century.  Mengistu purged rivals for power from the Derg and made himself Ethiopia's dictator, attempting to modernise Ethiopia's feudal economy through Marxist-inspired policies such as nationalisation and land redistribution.  His bloody consolidation of power in 1977-1978 is known as the Ethiopian Red Terror, a brutal crackdown on opposition groups and civilians following a failed assassination attempt by the Ethiopian People's Revolutionary Party in September 1976, after they had ignored the Derg's invitation to join the union of socialist parties.

Asrate Kassa: "Leul" "Ras" (Prince) Aserate Kasa (also Aserate Kassa, Asrate Kassa and Aserate-Medhin Kassa) GCVO (30 April 1922 – 23 November 1974) was an army commander and a member of the nobility of the Ethiopian Empire.  He was the fourth son of "Ras" Kassa Haile Darge, and his wife Princess ("Le'ilt") Tsige Mariam Beshah.  Prince Aserate Kassa was married to ("Le'ilt") Zuriashwork Gebre-Igziabiher, daughter of "Jantirar" Gebre-Igziabiher, and granddaughter of Empress Menen Asfaw consort of Emperor Haile Selassie I. Prince Aserate Kassa was the head of the Selalle sub-branch of the Shewan branch of Ethiopia's Imperial Solomonic Dynasty

Amda Seyon I: Amda Seyon I (also Amde Tsiyon and other variants, Ge'ez ዐምደ ፡ ጽዮን "ʿamda ṣiyōn", Amharic "āmde ṣiyōn", "Pillar of Zion") was Emperor of Ethiopia (1314–1344; throne name Gebre Mesqel Ge'ez ገብረ ፡ መስቀል "gabra masḳal", Amh.  "gebre mesḳel", "slave of the cross"), and a member of the Solomonic dynasty.  According to the British expert on Ethiopia, Edward Ullendorff, "Amde Tseyon was one of the most outstanding Ethiopian kings of any age and a singular figure dominating the Horn of Africa in the fourteenth century."  His conquests of Muslim borderlands greatly expanded Ethiopian territory and power in the region, maintained for centuries after his death.  Amda Seyon asserted the strength of the newly (1270) installed Solomonic dynasty and therefore legitimized it.  These expansions further provided for the spread of Christianity to frontier areas, sparking a long era of proselytization, Christianization, and integration of previously peripheral areas.

Haile Selassie: Haile Selassie I (Ge'ez: , "qädamawi haylä səllasé" ; ] ; 23 July 1892 – 27 August 1975) , born Tafari Makonnen Woldemikael, was Ethiopia's regent from 1916 to 1930 and emperor from 1930 to 1974.  He also served as Chairperson of the Organisation of African Unity from 25 May 1963 to 17 July 1964 and 5 November 1966 to 11 September 1967.  He was a member of the Solomonic Dynasty.

Supporting paragraphs: 1955 Constitution of Ethiopia Haile Selassie
Answer: Haile Selassie