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Cosimo I de' Medici portrait
de' Medici

Cosimo I de' Medici

First Grand Duke of Tuscany

12 June 1519 — 21 April 1574Male

Married to Eleonora di Toledo · Parent of 5 · 2 recorded parents

Family snapshot

Three generations at a glance

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Life story

Biography

First Grand Duke of Tuscany; consolidated power over all of Tuscany and was a great patron of the arts. Commissioned the Uffizi Gallery and supported sculptor Cellini and painter Bronzino.

Cosimo I de' Medici occupies generation 6 of this recorded lineage one of the children of Giovanni delle Bande Nere and Maria Salviati, partner to Eleonora di Toledo, and parent of Francesco I de' Medici, Ferdinando I de' Medici, Isabella de' Medici, Garcia de' Medici, and Giovanni de' Medici (Cardinal). The title "First Grand Duke of Tuscany" reflects the public or family role associated with this profile.

Within the wider House of Medici, this life forms part of a network spanning 6 recorded generations. The timeline and family snapshot below bring those connections together, while the full tree provides the broader historical context.

Milestones

Life timeline

  1. 12 June 1519

    Born

    The beginning of Cosimo I de' Medici's recorded life.

  2. Family

    Married Eleonora di Toledo

    A partnership that connects two branches of the de' Medici family.

  3. Next generation

    Family line continues

    5 children recorded in this branch: Francesco I de' Medici, Ferdinando I de' Medici, Isabella de' Medici, Garcia de' Medici, and Giovanni de' Medici (Cardinal).

  4. Legacy

    First Grand Duke of Tuscany

    A defining role in the story of the de' Medici family.

  5. 21 April 1574

    Died

    The close of a life whose connections continue through the family record.

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Frequently asked questions

Who were Cosimo I de' Medici's parents?

Cosimo I de' Medici's parents were father Giovanni delle Bande Nere and mother Maria Salviati.

Who were Cosimo I de' Medici's children?

Cosimo I de' Medici had 5 children: Francesco I de' Medici, Ferdinando I de' Medici, Isabella de' Medici, Garcia de' Medici, and Giovanni de' Medici (Cardinal).

Who did Cosimo I de' Medici marry?

Cosimo I de' Medici was married to Eleonora di Toledo.

What family tree does Cosimo I de' Medici belong to?

Cosimo I de' Medici appears in the House of Medici family tree on Lineage, where you can explore the full interactive genealogy chart.

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