How did Friedrich Engels financially support Karl Marx?

Friedrich Engels provided essential financial support to Karl Marx by working as a businessman in Manchester, allowing him to fund Marx’s life and work for many years.12

After the failure of the Revolutions of 1848, Engels took a position at the firm Ermen & Engels to address his own depleted income and to support Marx. He eventually became a full partner in the company, which enabled him to send Marx consistent financial aid, ranging from small notes to significantly larger sums.1

In 1869, Engels sold his partnership in the business. This sale provided him with enough capital to live comfortably and allowed him to grant Marx an annual allowance of £350, with additional funds promised to cover any contingencies. This financial backing was a cornerstone of their lifelong partnership, ensuring that Marx could focus on his theoretical work, including the development of Das Kapital.12