# Yahya ibn Muhammad

Yahya ibn Muhammad (Arabic: يحيى بن محمد; died 863) was the fifth Idrisid ruler of Morocco.

## Life

Yahya was a younger son of the fourth Idrisid emir, Muhammad ibn Idris, and took over the rule in Morocco after the death of his heirless brother Ali I in January 849.
Following the stabilization and consolidation of Idrisid authority by his brother, Yahya's reign is commonly regarded, in the words of historian Chafik T. Benchekroun, as "the very picture of prosperous and tranquil rule". During this time, the Idrisid capital at Fes expanded greatly with the arrival of people from al-Andalus and Ifriqiya. Thus the establishment of the two great mosques of Fes, the al-Qarawiyyin ('Mosque of the Kairouanis') and the Andalusian Mosque, is traditionally ascribed to his reign, in 859. At least for the Qarawiyyin, this claim is clearly a legend, as an inscription has been found proclaiming its foundation in 877.
Despite the traditional view of the reign as peaceful, modern historians have remarked on the complete absence of coins minted in his name at Fes, whereas there exist coins in the name of a certain Abu Sahl, possibly related to Abd al-Rahman ibn Abi Sahl al-Judhami, whose family is known to have fought the Idrisids for control of Fes a few years after Yahya's death.
Yahya died in 863 and was succeeded by his son, Yahya II.

## Genealogy

Idrisid dynasty :
* Emirs of Morocco
* Caliphs of Córdoba
* Emirs of Algericas
* Emirs of Málaga
| | | | | | | | | | | | | | | | | | | | | Abd al-Muttalib ibn Hashim | Abd al-Muttalib ibn Hashim | Abd al-Muttalib ibn Hashim | Abd al-Muttalib ibn Hashim | Abd al-Muttalib ibn Hashim | Abd al-Muttalib ibn Hashim |
| | | | | | | | | | | | | | | | | Abu Talib ibn Abd al-Muttalib | Abu Talib ibn Abd al-Muttalib | Abu Talib ibn Abd al-Muttalib | Abu Talib ibn Abd al-Muttalib | Abu Talib ibn Abd al-Muttalib | Abu Talib ibn Abd al-Muttalib | | | Abdullah ibn Abd al-Muttalib | Abdullah ibn Abd al-Muttalib | Abdullah ibn Abd al-Muttalib | Abdullah ibn Abd al-Muttalib | Abdullah ibn Abd al-Muttalib | Abdullah ibn Abd al-Muttalib |
| | | | | | | | | | | | | | | | | | | | | | | | | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | Ali ibn Abi Talib | Ali ibn Abi Talib | Ali ibn Abi Talib | Ali ibn Abi Talib | Ali ibn Abi Talib | Ali ibn Abi Talib | | | Fatima bint Muhammad | Fatima bint Muhammad | Fatima bint Muhammad | Fatima bint Muhammad | Fatima bint Muhammad | Fatima bint Muhammad | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | al-Hasan ibn Ali | al-Hasan ibn Ali | al-Hasan ibn Ali | al-Hasan ibn Ali | al-Hasan ibn Ali | al-Hasan ibn Ali |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | al-Hasan ibn al-Hasan | al-Hasan ibn al-Hasan | al-Hasan ibn al-Hasan | al-Hasan ibn al-Hasan | al-Hasan ibn al-Hasan | al-Hasan ibn al-Hasan |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Abd Allah ibn al-Hasan | Abd Allah ibn al-Hasan | Abd Allah ibn al-Hasan | Abd Allah ibn al-Hasan | Abd Allah ibn al-Hasan | Abd Allah ibn al-Hasan |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Idris I al-Akbar r. 788-791 | Idris I al-Akbar r. 788-791 | Idris I al-Akbar r. 788-791 | Idris I al-Akbar r. 788-791 | Idris I al-Akbar r. 788-791 | Idris I al-Akbar r. 788-791 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Idris II r. 803-828 | Idris II r. 803-828 | Idris II r. 803-828 | Idris II r. 803-828 | Idris II r. 803-828 | Idris II r. 803-828 |
| | | | | | | Muhammad I r. 828-836 | Muhammad I r. 828-836 | Muhammad I r. 828-836 | Muhammad I r. 828-836 | Muhammad I r. 828-836 | Muhammad I r. 828-836 | | | | | | | | | Umar ibn Idris | Umar ibn Idris | Umar ibn Idris | Umar ibn Idris | Umar ibn Idris | Umar ibn Idris | | | | | | | | | al-Qasim ibn Idris | al-Qasim ibn Idris | al-Qasim ibn Idris | al-Qasim ibn Idris | al-Qasim ibn Idris | al-Qasim ibn Idris | Dawud r. c. 877 | Dawud r. c. 877 | Dawud r. c. 877 | Dawud r. c. 877 | Dawud r. c. 877 | Dawud r. c. 877 |
| Ali I r. 836-849 | Ali I r. 836-849 | Ali I r. 836-849 | Ali I r. 836-849 | Ali I r. 836-849 | Ali I r. 836-849 | Yahya I r. 849-863 | Yahya I r. 849-863 | Yahya I r. 849-863 | Yahya I r. 849-863 | Yahya I r. 849-863 | Yahya I r. 849-863 | Ali II r. 866-? | Ali II r. 866-? | Ali II r. 866-? | Ali II r. 866-? | Ali II r. 866-? | Ali II r. 866-? | | | Idris ibn Umar | Idris ibn Umar | Idris ibn Umar | Idris ibn Umar | Idris ibn Umar | Idris ibn Umar | | | Ubayd Allah ibn Umar | Ubayd Allah ibn Umar | Ubayd Allah ibn Umar | Ubayd Allah ibn Umar | Ubayd Allah ibn Umar | Ubayd Allah ibn Umar | Yahya III r. ?-905 | Yahya III r. ?-905 | Yahya III r. ?-905 | Yahya III r. ?-905 | Yahya III r. ?-905 | Yahya III r. ?-905 | Muhammad ibn al-Qasim | Muhammad ibn al-Qasim | Muhammad ibn al-Qasim | Muhammad ibn al-Qasim | Muhammad ibn al-Qasim | Muhammad ibn al-Qasim |
| | | | | | | Yahya II r. 863-866 | Yahya II r. 863-866 | Yahya II r. 863-866 | Yahya II r. 863-866 | Yahya II r. 863-866 | Yahya II r. 863-866 | | | | | | | | | Yahya IV r. 905-922 | Yahya IV r. 905-922 | Yahya IV r. 905-922 | Yahya IV r. 905-922 | Yahya IV r. 905-922 | Yahya IV r. 905-922 | | | Ali ibn Ubayd Allah | Ali ibn Ubayd Allah | Ali ibn Ubayd Allah | Ali ibn Ubayd Allah | Ali ibn Ubayd Allah | Ali ibn Ubayd Allah | al-Hasan I al-Hajjam r. 928–930 | al-Hasan I al-Hajjam r. 928–930 | al-Hasan I al-Hajjam r. 928–930 | al-Hasan I al-Hajjam r. 928–930 | al-Hasan I al-Hajjam r. 928–930 | al-Hasan I al-Hajjam r. 928–930 | al-Qasim Kanun r. 937-949 | al-Qasim Kanun r. 937-949 | al-Qasim Kanun r. 937-949 | al-Qasim Kanun r. 937-949 | al-Qasim Kanun r. 937-949 | al-Qasim Kanun r. 937-949 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hammud ibn Ali | Hammud ibn Ali | Hammud ibn Ali | Hammud ibn Ali | Hammud ibn Ali | Hammud ibn Ali | Abu al-Aysh Ahmad r. 948-954 | Abu al-Aysh Ahmad r. 948-954 | Abu al-Aysh Ahmad r. 948-954 | Abu al-Aysh Ahmad r. 948-954 | Abu al-Aysh Ahmad r. 948-954 | Abu al-Aysh Ahmad r. 948-954 | al-Hasan II r. 954-974 | al-Hasan II r. 954-974 | al-Hasan II r. 954-974 | al-Hasan II r. 954-974 | al-Hasan II r. 954-974 | al-Hasan II r. 954-974 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maymun ibn Hammud | Maymun ibn Hammud | Maymun ibn Hammud | Maymun ibn Hammud | Maymun ibn Hammud | Maymun ibn Hammud | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hammud ibn Maymun | Hammud ibn Maymun | Hammud ibn Maymun | Hammud ibn Maymun | Hammud ibn Maymun | Hammud ibn Maymun | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | al-Qasim al-Ma'mun r. 1018-1021, 1023 | al-Qasim al-Ma'mun r. 1018-1021, 1023 | al-Qasim al-Ma'mun r. 1018-1021, 1023 | al-Qasim al-Ma'mun r. 1018-1021, 1023 | al-Qasim al-Ma'mun r. 1018-1021, 1023 | al-Qasim al-Ma'mun r. 1018-1021, 1023 | | | | | | | | | | | Ali al-Nasir r. 1016-1018 | Ali al-Nasir r. 1016-1018 | Ali al-Nasir r. 1016-1018 | Ali al-Nasir r. 1016-1018 | Ali al-Nasir r. 1016-1018 | Ali al-Nasir r. 1016-1018 |
| | | | | | | | | | | | | Muhammad al-Mahdi r. 1035-1048 | Muhammad al-Mahdi r. 1035-1048 | Muhammad al-Mahdi r. 1035-1048 | Muhammad al-Mahdi r. 1035-1048 | Muhammad al-Mahdi r. 1035-1048 | Muhammad al-Mahdi r. 1035-1048 | | | | | | | | | | | Idris I al-Muta'ayyad r. 1035-1039 | Idris I al-Muta'ayyad r. 1035-1039 | Idris I al-Muta'ayyad r. 1035-1039 | Idris I al-Muta'ayyad r. 1035-1039 | Idris I al-Muta'ayyad r. 1035-1039 | Idris I al-Muta'ayyad r. 1035-1039 | Yahya I al-Mu'tali r. 1021-1023, 1025-1026 r. 1026-1035 | Yahya I al-Mu'tali r. 1021-1023, 1025-1026 r. 1026-1035 | Yahya I al-Mu'tali r. 1021-1023, 1025-1026 r. 1026-1035 | Yahya I al-Mu'tali r. 1021-1023, 1025-1026 r. 1026-1035 | Yahya I al-Mu'tali r. 1021-1023, 1025-1026 r. 1026-1035 | Yahya I al-Mu'tali r. 1021-1023, 1025-1026 r. 1026-1035 |
| | | | | | | | | | | | | al-Qasim al-Wathiq r. 1048-1054 | al-Qasim al-Wathiq r. 1048-1054 | al-Qasim al-Wathiq r. 1048-1054 | al-Qasim al-Wathiq r. 1048-1054 | al-Qasim al-Wathiq r. 1048-1054 | al-Qasim al-Wathiq r. 1048-1054 | | | Muhammad I al-Mahdi r. 1047-1053 | Muhammad I al-Mahdi r. 1047-1053 | Muhammad I al-Mahdi r. 1047-1053 | Muhammad I al-Mahdi r. 1047-1053 | Muhammad I al-Mahdi r. 1047-1053 | Muhammad I al-Mahdi r. 1047-1053 | | | Yahya II al-Qa'im r. 1039-1040 | Yahya II al-Qa'im r. 1039-1040 | Yahya II al-Qa'im r. 1039-1040 | Yahya II al-Qa'im r. 1039-1040 | Yahya II al-Qa'im r. 1039-1040 | Yahya II al-Qa'im r. 1039-1040 | Idris II al-Ali r. 1042-1047, 1053-1054/5 | Idris II al-Ali r. 1042-1047, 1053-1054/5 | Idris II al-Ali r. 1042-1047, 1053-1054/5 | Idris II al-Ali r. 1042-1047, 1053-1054/5 | Idris II al-Ali r. 1042-1047, 1053-1054/5 | Idris II al-Ali r. 1042-1047, 1053-1054/5 | Hasan al-Mustansir r. 1040-1042 | Hasan al-Mustansir r. 1040-1042 | Hasan al-Mustansir r. 1040-1042 | Hasan al-Mustansir r. 1040-1042 | Hasan al-Mustansir r. 1040-1042 | Hasan al-Mustansir r. 1040-1042 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Idris III al-Sami r. 1053 | Idris III al-Sami r. 1053 | Idris III al-Sami r. 1053 | Idris III al-Sami r. 1053 | Idris III al-Sami r. 1053 | Idris III al-Sami r. 1053 | Muhammad II al-Musta'li r. 1054/5 | Muhammad II al-Musta'li r. 1054/5 | Muhammad II al-Musta'li r. 1054/5 | Muhammad II al-Musta'li r. 1054/5 | Muhammad II al-Musta'li r. 1054/5 | Muhammad II al-Musta'li r. 1054/5 | Abd Allah ibn Idris | Abd Allah ibn Idris | Abd Allah ibn Idris | Abd Allah ibn Idris | Abd Allah ibn Idris | Abd Allah ibn Idris |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | Muhammad ibn Abd Allah | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Muhammad ibn Muhammad al-Idrisi | Muhammad ibn Muhammad al-Idrisi | Muhammad ibn Muhammad al-Idrisi | Muhammad ibn Muhammad al-Idrisi | Muhammad ibn Muhammad al-Idrisi | Muhammad ibn Muhammad al-Idrisi | | | | | | |