Mathias Spihler was a Swedish architect of German descent from Södermalm

Södermalm

Södermalm, often shortened to "Söder", is a district in central Stockholm. It covers the large island formerly called "Åsön". With a population of 99,685, it is one of the most densely populated districts of Scandinavia...

, Stockholm

Stockholm

Stockholm is the capital and the largest city of Sweden and constitutes the most populated urban area in Scandinavia. Stockholm is the most populous city in Sweden, with a population of 851,155 in the municipality , 1.37 million in the urban area , and around 2.1 million in the metropolitan area...

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In 1670-1 he aided Jean de la Vallée

Jean De la Vallée

Jean de la Vallée was a French-born architect, who lived and worked in Sweden. He was the son of Simon de la Vallée, who was killed by a Swedish nobleman in 1642. The father had started the planning of the House of Knights in Stockholm, and in 1660 his son finished his father's work...

 in the construction of Katarina Kyrka

Katarina kyrka

Katarina kyrka is one of the major churches in central Stockholm, Sweden. The original building was constructed 1656–1695. It has been rebuilt twice after being destroyed by fires, the second time during the 1990s...

 (Catherine's Church) and him as technical superintendent at the church in 1671. Spihler also built the Van der Nootska Palace

Van der Nootska Palace

Van der Nootska Palace is a palace located at Sankt Paulsgatan 21 in Södermalm, Stockholm, Sweden.The house was built in 1671-1672 by architect Mathias Spieler for the Dutch-born Swedish military officer Thomas van der Noot. The facade has pilasters and festoons and the middle part is decorated...

 between 1671 and 1672. He was married to Vallée's daughter Margaret de la Vallée. He is buried in Kungsholms kyrka (Ulrika Eleonora Church) which he built in 1672.