Mongol invasion

The following year, with the advancing Mongols, Michael, Grand Prince of Kyiv, who was married to Daniel's sister, quickly left Kyiv and petitioned Daniel for help. Daniel dispatched his voivode, Dmytro, to defend the city. However, after a long siege, its walls were breached and, despite fierce fighting within the city, Kyiv fell on 6 December 1240 and was largely destroyed. A year later, the Mongols passed through Galicia and Volhynia while campaigning against the Poles and Hungarians, destroying Galicia in the process.^[6]

On 17 August 1245, Daniel defeated a combined force of the Prince of Chernigov, disaffected boyars, and Hungarian and Polish elements at Yaroslav and finally took the remainder of Galicia, thus reconstituting his father's holdings. He made his brother Vasylko ruler of Volhynia and retained the Galician title for himself, though he continued to exercise real powers in both places.^[7]

Territorial boundaries of the Kingdom of Galicia–Volhynia (1245-1349).

Daniel's domestic policies focused on stability and economic growth. During his rule, German, Polish, and Rus' merchants and artisans were invited into Galicia, and numbers of Armenians and Jews established themselves in the towns and cities. Daniel founded the towns of Lviv (1256) (naming the former for his son) and Kholm, and fortified many others. He appointed officials to protect the peasantry from aristocratic exploitation and formed peasant-based heavy infantry units.^[8]

Yet Daniel's successes and his failed defense of Kyiv attracted the further attention of the Mongols. In 1246, he was summoned to the capital of the Golden Horde at Sarai on the Volga River and was forced to accept Mongol overlordship. According to the Ukrainian historian Orest Subtelny, Daniel was handed a cup of fermented mare's milk by the Mongol khan Batu and told to get used to it, as "you are one of ours now." They exchanged hostages whereby 100 families of Keraites were re-settled in Carpathian Galicia. According to James Chambers,^[9] the following dialogue took place between Batu and Daniel of Galicia: At a banquet Batu asked if he drank kumiz like the Mongols and Daniel answered: "Until now I did not, but now I do as you command and I drink it." To which Batu replied: "You are now one of ours," and since he was more used to it ordered that Daniel be given a goblet of wine. This was due to Daniel's notorious love of wine.

While formally accepting the Mongols as overlords, and supplying them with soldiers as required, Daniel built a foreign policy around opposition to the Golden Horde. He established cordial relations with the rulers of the Kingdom of Poland and Kingdom of Hungary, and requested aid from Pope Innocent IV in the form of a crusade. In return for papal assistance, Daniel offered to place his lands under the ecclesiastical authority of Rome, a pledge never realised. Wooed by the prospect of extending his authority, the Pope encouraged Daniel's resistance to the Mongols and his Western orientation, and in 1253, had a papal representative crown Daniel at Dorohochyn on the Bug River. Danylo wanted more than recognition, however, and commented bitterly that he expected an army when he received the crown.^[10] The following year, Daniel repelled Mongol assaults led by Orda's son, Kuremsa, on Ponyzia and Volhynia and dispatched an expedition with the aim of taking Kyiv. Despite initial successes, in 1259, a Mongol force under Burundai and Nogai Khan entered Galicia and Volhynia and offered an ultimatum: Daniel was to destroy his fortifications or Burundai would assault the towns. Daniel complied and pulled down the city walls.^[7]

In the last years of his reign, Daniel engaged in dynastic politics, marrying a son and a daughter to the offspring of Mindaugas of the Grand Duchy of Lithuania and acquiring territorial concessions in Poland from the latter. Another daughter of his, Ustynia, was married to Prince Andrey Yaroslavich of Vladimir-Suzdal. He also arranged for the marriage of his son Roman to Gertrude, the Babenberg heiress, but was unsuccessful in his bid to have him placed on the ducal throne of Austria.

By his death in 1264, Daniel had reconstructed and expanded the territories held by his father, held off the expansionist threats of Poland and Hungary, minimized Mongol influence on Western Ukraine, and raised the economic and social standards of his domains. He was succeeded in Galicia by his son Lev.