He was active in Barcelona from 1428 to 1460 and served the king of Spain in an official capacity.
[1] In 1431, King Alfonso V sent him to Flanders to learn the language of realist painting.
He made a copy of the Adoration of the Lamb by Hubert and Jan van Eyck; in 1432, this was placed in St Bavo's Cathedral, Ghent.
[1] In 1443, Dalmau was commissioned to paint the Virgin of the Consellers altarpiece for the chapel of the City Hall, which he completed in 1445; this is perhaps the only known work of his to survive.
[1] In 1445, he also painted a Virgin and Child in the style of Jan van Eyck, which is in the church of San Miguel at Barcelona.