`Umar ibn al-Khattāb (c. 581 – 644), sometimes referred by Sunni Muslims as `Umar al-Farūq (Umar the Distinguisher (between Truth and Falsehood)) was from the Banu Adi clan of the Quraysh tribe. He was a companion of the Islamic prophet Muhammad and became the second Sunni Caliph (634 – 644) following the death of Abu Bakr, the first Caliph.

All `Umar's relatives of the same generation were also Sahaba and his daughter Hafsa bint Umar was a Mother of the Believers. His son was also an important Sahaba, and his grandsons were Salaf.

Another son is, az-Zubayr ibn Bakkar, called Abu Shahmah, though from which wife is unknown.

Umar (Arabic: عمر ابن الخطاب, Transliteration: `Umar ibn Al-Khattāb, Umar Son of Al-Khittab, c. 586–590 CE– 7 November 644), also known as Omar, Farooq the Great was the most powerful of the four Rashidun Caliphs and one of the most powerful and influential Muslim rulers in history. He was a sahabi (companion) of the Islamic prophet Muhammad. He succeeded Caliph Abu Bakr (632–634) as the second Caliph of Rashidun Caliphate on 23 August 634. He was an expert jurist and is best known for his justice, that earned him the title Al-Farooq (The one who distinguishes between right and wrong). Under Umar the Islamic empire expanded at an unprecedented rate ruling the whole Sassanid Persian Empire and more than two thirds of the Eastern Roman Empire. His brilliantly coordinated multi-prong attacks against the Sassanid Persian Empire resulted in the conquest of the Persian empire in less than two years. His legislative abilities and firm political and administrative control over a rapidly expanding empire marked his reputation as a great political and military leader. It was Umar, who for the first time in 500 years since their expulsion from the Holy Land, allowed Jews to practice their religion freely and live inside Jerusalem.^{[citation needed]}

A family tree, or pedigree chart, is a chart representing family relationships in a conventional tree structure. The more detailed family trees used in medicine, genealogy, and social work are known as genograms.

Genealogical data can be represented in several formats, for example as a pedigree or ancestor chart. Family trees are often presented with the oldest generations at the top and the newer generations at the bottom. An ancestry chart, which is a tree showing the ancestors of an individual, will more closely resemble a tree in shape, being wider at the top than the bottom. In some ancestry charts, an individual appears on the left and his or her ancestors appear to the right. A descendancy chart, which depicts all the descendants of an individual will be narrowest at the top.

Family trees can have many themes. One might encompass all direct descendants of a single figure, or all known ancestors of a living person. Another might include all members of a particular surname (e.g. male-line descendants). Yet another approach is to construct a tree including all holders of a certain office, such as kings of Germany. This relies on dynastic marriage to hold together the links between dynasties.

Abu Bakr (Abdullah ibn Abi Quhafa) (Arabic: عبد الله بن أبي قحافة, Transliteration: ʿAbd Allāh ibn Abī Quḥāfah, c. 573 CE - 634 CE) also known as Abū Bakr as-Șiddīq (Arabic: أبو بكر الصديق) was a senior companion (Sahabi) and the father-in-law of the Islamic prophet Muhammad. He ruled over the Rashidun Caliphate from 632–634 CE when he became the first Muslim Caliph following Muhammad's death. As Caliph, Abu Bakr succeeded to the political and administrative functions previously exercised by Muhammad, since the religious function and authority of prophethood ended with Muhammad's death according to Islam. He was called Al-Siddiq (The Truthful) and was known by that title among later generations of Muslims.

As a young man, Abu Bakr became a cloth merchant and he traveled extensively in Arabia and neighboring lands in the Middle East, through which he gained both wealth and experience. He eventually came to be recognized as the chief of his clan. On his return from a business trip to Yemen, he was informed that in his absence Muhammad had openly declared his prophethood. Not long after, Abu Bakr accepted Islam and was the first person outside the family of Muhammad to openly become a Muslim. He was instrumental in the conversion of many people to the Islamic faith and early in 623, Abu Bakr's daughter Aisha was married to Muhammad, strengthening the ties between the two men.

Don Omar (born William Omar Landrón Rivera; February 10, 1978 ), a Puerto Rican reggaeton singer-rapper and actor. He is sometimes referred to by his nickname El Rey (Spanish: "The King").

William Omar Landrón Rivera is the oldest son of William Landrón and Luz Antonia Rivera. He was raised in Santurce, a barrio in the Villa Palmeras area of San Juan, Puerto Rico. From an early age, he showed interest in the music of Vico C and Brewley MC.^{[citation needed]} During his youth, he became an active member of a Protestant church, Iglesia Evangélica Restauración en Cristo in Bayamón where he occasionally offered sermons. However, after four years, he left the church to dedicate himself to singing.

His first public performance in a night club was accompanied by disc jockey Eliel Lind Osorio. Afterwards he appeared regularly on compilation albums from popular DJs and producers including Luny Tunes, Noriega, and DJ Eric. He also worked as a backup singer for the duo Héctor & Tito. One of the members, Héctor Delgado, helped him produce his first solo album.