Depicts the Bust of Costanza Bonarelli surrounded by the country and painter names, the dates "1598-2018" on the left, mintmark "R" on the right, the initials of the engraver "A.M." below on the left. The coin’s outer ring depicts the 12 stars of the European flag.

The Bust of Costanza Bonarelli is a marble portrait sculpture by the Italian artist Gian Lorenzo Bernini, created in the 1630s. It is housed in the Museo Nazionale del Bargello in Florence, Italy.

The subject of the work is Costanza Bonarelli, with whom he fell in love when her husband was working as Bernini's assistant in 1636. Later, Bernini discovered his brother had also been having a vigorous affair with Costanza. This created tension and led to Bernini assaulting his brother and ordering a slave to harm Costanza (leading to a deep scar on the side of her face), which led Pope Urban VIII to intervene. He advised Bernini to get married, which he did, in 1639, to Caterina Tezio. Their marriage lasted 34 years and produced 11 children. Bernini would remain professional and increasingly religious to the last, when another Pope blessed him on his deathbed.

Engraver: Annalisa Masini

A geographical map of Western Europe spans the outer ring and inner core on the right side of the coin. The inscription 2 EURO is superimposed over the map of Europe, with the numeral “2” located in an open field representing the eastern Atlantic Ocean.

12 stars are located on the right side of the outer ring, with six stars atop the map of Europe and six stars below it; six vertical stripes cut across the inner core of the coin, visually connecting the upper and lower star segments.

Luc Luycx, a designer at the Royal Belgian Mint, designed the Euro’s common reverse; his initials, LL, are seen on the right side of the design, just under the “O” in “EURO.”

The sequence "2 ★" repeated six times alternately upright and inverted