It is thought that the Beaugrant family originated in Lorraine, from where its members may have moved to Flanders, working in Mechelen, Bruges and Brussels. Apart from being the wealthiest area of the territory, it also had close political, economic and cultural ties with the kingdoms in Iberia, and very especially with Castile. In fact, there were particularly close connections between Bruges and Bilbao given the fact that they were trading ports.
 
Guiot must have acted as the head of the family group together with his brother Juan who also played a major role in the Renaissance arts in the Basque-Navarre region, and with a third member, Mateo, a nephew of Guiot and Juan.
 
There are records of Guiot de Beaugrant (+1549) being in Flanders in 1526. In that year, while living in Mechelen, Margaret of Austria entrusted him with the creation of the mausoleum of the Child Francis of Austria, the princess’ older brother, at the church of Cauberghe (Brussels), the whereabouts of which is currently unknown. Later, from 1529 to 1532, he created the famous Franc Fireplace in Bruges. It is known that he married twice and that he settled in Bilbao in 1533, working both as an artist and as a trader of Flemish artworks. From 1533 to 1546 the artist worked on the creation of the altarpieces for the Santiago Cathedral and the San Antón Church, both in Bilbao, and he also devised a Plan for the

 gabarra 

Particular kind of flat-bottomed boat or barge used for transporting heavy goods. Although it is sometimes powered by sails or oars, it is more frequently towed by a tug. It was a very popular form of transport for canals, initially pulled by draft animals on an adjacent towpath. With the industrial revolution, barges were replaced by railways which offered greater speed and more routes, thus lowering costs and ensuring greater profitability. Today barges are still used to transport very bulky or heavy goods, as the cost of hauling goods by barge is very low.

Fountain to resolve the water supply for a section of the city. Guiot de Beaugrant was also the author of the main altarpiece of the Santa María Church in Portugalete—consisting of a stone frieze, five tiers, three rows and the usual attic with the Calvary (for whose creation he worked with Juan de Ayala)—and also of the altarpiece of the Adoration of the Magi for a side chapel in that same church.

It is likely that, as from 1545, he worked on the Calvary for the San Severino Church in Balmaseda, mostly in the figure of Christ, and also in the chapel of Abbot Irusta in Cenarruza.
 
Guiot de Beaugrant began the altarpiece of Elvillar (Álava), regarded as the best pre-Romanist altarpiece of the whole of the Rioja Alavesa area, which was concluded after his death by Juan and Mateo Beaugrant.