Första kammaren from the beginning of the new state until his death in Stockholm on 12 January 1886. However, he belonged here to those who thought that the reform work could be delayed and confined it to purely practical issues. Among those to whom he devoted special interest may be mentioned: the introduction of the metric system, the adoption of gold standard as a unit of account, the development of banking legislation, the cancellation of the compulsory rate on the Riksdag's banknotes in accordance with §72 of the Constitution, the cancellation of the Riksdag's sovereignty over the Sveriges Riksbank, the introduction of the irrevocable 4 per cent bonds as a type for Swedish government loans, reforms in the debt collection and bankruptcy law, abolition of the wool discount and the convoy commissariat (konvojkommissiariatet), new provisions concerning the measurement of ships, port tariffs, pilotage, improvement of officials' pay conditions, introduction of open voting in parliament, determination of unmarried women's age of majority to 21 years, extension of the right of married women to themselves take possession of inherited and acquired property etc. It was also on his initiative that the Swedish Riksdag made the decision to appoint a prime minister as head of the king's council. Wallenberg, who was a member of the Committee of Supply from 1867 to 1870, otherwise made himself known as one of the power-owning Lantmanna Party's most unforgiving adherents and was vigorously active at the Riksdag of 1883 to bring the army order and tax proposals of Arvid Posse's government to a fall. In the municipal life of the capital, Wallenberg played a particularly significant role. He served in the Stockholm City Council (Stockholms stadsfullmäktige) from the introduction of this institution to his death and in 1876-77 as its deputy chairman and for a number of years as a member of the Drafting Committee (Beredningsutskottet). In 1867 Wallenberg was Sweden's official representative at the international monetary conference in Paris, where his proposal that all states should agree on the same alloy in the gold coins was adopted. He was also considerably employed by committees on matters of an economic nature. His financial activities are characterized by rare foresight, paired with energy and power, but also by a ruthlessness that made him, before and after his death, one of the more contentious. Personal life Wallenberg fathered 21 children. Wallenberg married in 1846 to Catharina Wilhelmina ("Mina") Andersson