Jakub Auguston Jr. (born Giacomo Agustoni; â 3 August 1735) was a Czech Baroque architect of Italian descent. He lived in Plzeà  and worked in entire West Bohemia.
Giacomo Agustoni was born in Rome between 1665 and 1670 (some sources specify that it was in 1665 or 1670, others state 1668) He was member of a branched family of Italian bricklayers and builders active in Bohemia from the first half of the 17th century. He was the nephew of the builder Jakub Auguston Sr., who lived in Plzeà  from 1661. His uncle invited him to Plzeà  and from then on Giacomo Agustoni was known as Jakub Auguston Jr. ()
In 1692 or 1694, Auguston Jr. became a burgher of the city of Plzeà Â. Auguston Jr. worked with his uncle until his uncle's death in 1701 and then took over his workshop. A year before his death, Auguston Jr. built a magnificent house in Plzeà Â. He died in this house on 3 August 1735. He was buried in the Church of Saint Anne in Plzeà Â.
Auguston Jr. had two sons, Václav (1705âÂÂ1758) and Josef (1717âÂÂ1784). Václav worked for his father in the workshop and Josef also briefly worked as a builder before becoming a farmer.
Jakub Auguston Jr. is one of the typical representatives of Czech Baroque architecture. He is the author of many burgher houses, churches and castles in West Bohemia. The Church of Saint Vitus in Dobà Âany is considered one of his most beautiful works. There are several of his houses in the historic centre of Plzeà Â, which is protected as an urban monument reservation. Notable is the house in SedláÃÂkova Street, which he built for himself and his son Václav.
His notable works include: