In that same year:
Al-Hasan ibn Sahl, the vizier and father of Buran—the wife of al-Maʾmun previously mentioned—passed away; he was counted among the foremost nobles and leaders of the people (1).

It is also reported that Ishaq ibn Ibrahim died in this very year—and Allah knows best.

That year likewise witnessed the sudden death of Abu Saʿid Muhammad ibn Yusuf al-Marwazi; his son Yusuf was thereupon appointed in his stead as deputy over Armenia.

In the same year there died: Ibrahim ibn al-Mundhir al-Hizami (2); Musʿab ibn ʿAbd Allah al-Zubayri (3); Hudbah ibn Khalid al-Qaysi (4); and Abu al-Salt al-Harawi, who was regarded as a weak transmitter (5).

Then the year 237 AH began.

In it Yusuf ibn Muhammad ibn Yusuf, the governor of Armenia, seized the chief patrician of the region and sent him on to the caliphal deputy. After the prisoner had been dispatched, a heavy snowfall struck the land. The partisans of that patrician therefore rallied, came, and besieged the town where Yusuf ibn Muhammad was stationed. He sallied out to fight them, but they killed him along with a large contingent of the Muslims who were with him, and many people perished in the snow because of the severe cold.

When news of this dreadful affair reached al-Mutawakkil, he sent Bugha al-Kabir with a very large army to that region. Bugha slew, from among those who had besieged the city (6)—the commander killed about thirty (7) thousand—and he took many captives. He then marched on to the lands of al-Baq in the districts of al-Basfurjan (8), entered many large cities, pacified the realms, and secured the country and its provinces.