Bank Born Out of Black Death Struggles to Survive

Siena, the medieval city renowned for its Palio horse races, is home to the world’s oldest bank. Within its aging walls lies a distinctly 21st-century tale of devastation wrought by local politicians and global financiers.

Banca Monte dei Paschi di Siena SpA, Italy’s third-largest lender, is struggling to survive as it seeks to repay a second bailout or face nationalization. Its downfall proved a boon to global investment banks. They offered merger and investment advice to executives beholden to politicians that helped wipe out 93 percent of Monte Paschi’s value. Then they sold it complex derivatives that hid, even worsened the losses.