Guidantonio da Montefeltro

• 
• Born in 1378
• Assassinated on February 21, 1443 in Urbino, at the approximate age of 64 years

Parents

• Antonio II da Montefeltro (1348 - 1404), conte di Urbino
• Agnesina dei Prefetti di Vico ( - 1416)

Family

• Married in November 1397, with Rengarda Malatesta ( - 1434)
• Married on January 23, 1424, with Caterina Colonna, issuing
  • Agnesina (1431 - 1447)
  • Sveva (1434 - 1478)
• Relationship with Ludovica degli Ubaldini, issuing
  • Federico (1442 - 1482)