The story of Pedro Villasur’s last expedition can begin, as so many contemporary European military stories began, with a royal inheritance. More precisely, it stemmed from the War of the Quadruple Alliance (1718-20), and the determination of Elizabeth Farnese, royal consort to King Philip V of Spain, to secure a territorial legacy for her sons, who stood in the line of succession behind the children of Philip’s first marriage. The Treaty of Utrecht had obliged the Spanish Bourbons to give up most of their kingdom’s holdings in the Mediterranean. Farnese proposed to find out how vigorously the other European monarchs were prepared to defend that treaty clause. A Spanish invasion of Sardinia and Sicily followed. Britain, France, Austria, and Holland declared war; the first two of those kingdoms pursued it vigorously enough. France, in particular, sent troops into northern Spain and seized the overseas Spanish outposts of Pensacola and Los Adaes.
French expansion in North America had in previous years become a matter of some concern for officials in Madrid and Mexico. The new colony of Louisiana had driven a wedge between the older Spanish provinces of Florida and Texas, threatening Spain’s control of both. Up the Mississippi River, from their settlements in Illinois, French traders reportedly did business with the Pawnees and Apaches (Nde) on Mexico’s northern frontier. Those nations could, in turn, resell French guns and ammunition to the Comanches, a nation recently arrived in the southern Plains whose warriors had raided Spanish outposts in New Mexico. With France and Spain now at war, the possibility that French agents might directly arm and incite Comanche raiders became one that local Spanish officials could not dismiss.
In the spring of 1720 the governor of New Mexico ordered Pedro Villasur to take a body of troops into the northern Plains and arrest or expel any French traders he might find. The general set out in June, riding several hundred miles northeast of New Mexico to the Platte River in modern Nebraska. His command included a dozen Nde scouts, 40 light Spanish infantry, and sixty Pueblo warriors captained by Jose Naranjo. Villasur invited local Pawnee leaders to a parlay, but they declined. When one of his messengers failed to return, the general decided he was over his head, and began his withdrawal. Too late: early on August 14 a party of Pawnee and Oto-Missouri warriors, armed with guns and bows, attacked the Spanish camp near the Platte-Loup River confluence. Fifty of the defenders, including Villasur, were killed; a few Spaniards with horses, and most of the Puebloans (who had been in a separate camp) escaped. The northern Plains remained Native ground.

“We are Unfond of Pedro Villasur,” unk. artist.
Survivors of the battle reported that they had seen European-style shelters on their route of march, and believed the French had been nearby when the battle began. Certainly the Pawnees and Otos had acquired their firearms from French traders. One may therefore consider this engagement to have been a late and minor battle of the War of the Quadruple Alliance.
The Loup River battle had no impact on that larger conflict, but it did leave an unexpectedly large historical footprint. Following the Spanish defeat, an unidentified artist painted the battle, or at least New Mexicans’ memory of it, on bison hide. A generation later, Father Philipp von Segesser von Brunegg sent the painting back to Europe; art historians subsequently named the painting for the priest. The Segesser painting included white men in European dress fighting alongside the Pawnees. Apparently, the artist believed that French colonists had taken part in the battle. Native American memories of Villasur’s incursion similarly acquired, over time, an element of fiction. Four decades after Villasur’s death the English explorer Jonathan Carver, visiting a Ho-Chunk community in present-day Wisconsin, heard a story from chief Ekharrimonyk about a Spanish silver caravan his people had overwhelmed 40 years earlier. The timing of the account, and the absence of other contemporary Spanish parties in the area, indicates the “caravan” was probably Villasur and his companions. Carver added that the Ho-Chunks, not then familiar with silver, had traded the captured bullion to the French for a pittance. That part of the story may have been true, but Ekharrimonyk had misheard or misremembered an important detail: none of his countrymen had taken part in the 1720 battle. Other sources suggest the Ho-Chunks obtained the plunder as a gift or trade good from their Iowa or Oto allies, which seems the likeliest explanation. It would seem that the victorious Otos and Pawnees placed little value in silver coin and plate - certainly not compared to the glory they won defending their homeland - and that the ripple effects of this fairly isolated battle extended into the Great Lakes region and half a century into the future.
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Sources: Jeremy Black, Politics and Foreign Policy in the Age of George I (Ashgate Publishing, 2014), esp. 87, 108-12, 116-19; Thomas Chavez, “The Segesser Hide Paintings: History, Discovery, Art,” Great Plains Quarterly 10 (Spring 1990): 96-109; Alfred Thomas, ed., After Coronado: Spanish Exploration Northeast of New Mexico, 1696-1727 (Univ. of Oklahoma Press, 1969); John Parker, ed., The Journals of Jonathan Carver (Minnesota Historical Society, 1976), esp. 80-81.
