Banu Hamdan is a well known Yemeni clan

Clan

A clan is a group of people united by actual or perceived kinship and descent. Even if lineage details are unknown, clan members may be organized around a founding member or apical ancestor. The kinship-based bonds may be symbolical, whereby the clan shares a "stipulated" common ancestor that is a...

 since the 1st millennium

1st millennium

File:1st millennium montage.png|From left, clockwise: Depiction of Jesus, the central figure in Christianity; The Colosseum, a landmark of the once Roman Empire; Gunpowder is invented during the latter part of the millennium, in China; Chess, a new board game, takes on popularity across the globe;...

 BCE, it was mentioned in Sabaic

Sabaeans

The Sabaeans or Sabeans were an ancient people speaking an Old South Arabian language who lived in what is today Yemen, in the south west of the Arabian Peninsula.Some scholars suggest a link between the Sabaeans and the Biblical land of Sheba....

 inscriptions as qayls of Hashid

Hashid

The Hashid tribal federation is the second largest tribal federation in Yemen. Member tribes of the Hashid Confederation are found primarily in the mountains in the North and Northwest of the country. It was headed by Sheikh Abdullah ibn Husayn al-Ahmar until his death on December 29, 2007 and is...

, who later acquired control over a part of Bakil and finally gave their clan name to a tribal confederation including Hashid

Hashid

The Hashid tribal federation is the second largest tribal federation in Yemen. Member tribes of the Hashid Confederation are found primarily in the mountains in the North and Northwest of the country. It was headed by Sheikh Abdullah ibn Husayn al-Ahmar until his death on December 29, 2007 and is...

 and Bakil

Bakil

The Bakil federation is the largest tribal federation in Yemen. Imam Yahya's campaign to subject the country, and more specifically the tribes, to his control, led him to undertake massive campaigns against their influence and power; in fact, his efforts succeeded in permanently eliminating all but...

.

Hashid and Bakil

Today still in the same ancient tribal form in Yemen Hashid

Hashid

The Hashid tribal federation is the second largest tribal federation in Yemen. Member tribes of the Hashid Confederation are found primarily in the mountains in the North and Northwest of the country. It was headed by Sheikh Abdullah ibn Husayn al-Ahmar until his death on December 29, 2007 and is...

 and Bakil

Bakil

The Bakil federation is the largest tribal federation in Yemen. Imam Yahya's campaign to subject the country, and more specifically the tribes, to his control, led him to undertake massive campaigns against their influence and power; in fact, his efforts succeeded in permanently eliminating all but...

 of Hamdan remained in the highlands North of Sana'a between Marib and Hajjah

Hajjah

Hajjah is the capital city of Hajjah Governorate in northwestern Yemen. It is located 127 kilometres northwest of Sana'a, at an elevation of about 1800 metres. As of 2003, the Hajjah City District had a population of 53,887 inhabitants....

.

Banu Yam

Banu Yam

Banu Yam

Banu Yam are a large tribe native to Najran Province in Saudi Arabia, and are the principal tribe of that area. They belong to the Qahtanite branch of Arabian tribes, specifically the group known as Hamdan, and are therefore native to southwestern Arabia....

 settled to the North of Bakil

Bakil

The Bakil federation is the largest tribal federation in Yemen. Imam Yahya's campaign to subject the country, and more specifically the tribes, to his control, led him to undertake massive campaigns against their influence and power; in fact, his efforts succeeded in permanently eliminating all but...

 in Najran (today in Saudi Arabia). It also branched into the tribes: the Al Murrah

Al Murrah

The Al Murrah is a tribe descended from the well-known Banu Yam tribe. Al Murrah are a tribe of camel-herding nomads, recently some of them have taken up permanent settlement near to traditional Oasis. They exist in many places all over the Arabian Peninsula, but intensively in southern and eastern...

 and the 'Ujman of eastern Saudi Arabia and the Persian Gulf

Persian Gulf

The Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.The Persian Gulf was the focus of the 1980–1988 Iran-Iraq War, in which each side attacked the other's oil tankers...

 coast.

Banu Kathir

Banu Kathir from Hadramut in the East of Yemen where they established their own sultanate.

Banu Al-Mashrouki

Banu Al-Mashrouki

Banu Al-Mashrouki

-In Lebanon:Banu Al-Mashrouki settled in Lebanon producing well known Maronite influential families such as the Awwad, Massa'ad, Al-Sema'ani mainly establishing Hasroun and Tanbourit...

 settled in Lebanon producing well known Maronite influential families such as the Awwad, Massa'ad, Al-Sema'ani, Hasroun

Hasroun

Hasroun is a village located in the Bsharri District in the North Governorate of Lebanon. It is situated in the Valley of Qadisha, overlooking the southern branch of this valley, the Qannoubine Valley....

.

Banu Al Harith remained in Jabal Amil and were mainly Shia. A smaller group joined the Yemeni Druze

Druze

The Druze are an esoteric, monotheistic religious community, found primarily in Syria, Lebanon, Israel, and Jordan, which emerged during the 11th century from Ismailism. The Druze have an eclectic set of beliefs that incorporate several elements from Abrahamic religions, Gnosticism, Neoplatonism...

 and were eventually pushed by Kaysi Druze

Druze

The Druze are an esoteric, monotheistic religious community, found primarily in Syria, Lebanon, Israel, and Jordan, which emerged during the 11th century from Ismailism. The Druze have an eclectic set of beliefs that incorporate several elements from Abrahamic religions, Gnosticism, Neoplatonism...

 to Jabal Al Druze in Syria.