if death, _ := node.Death(); death != nil && death.DateRange().IsValid() {
        dateParts = append(dateParts, fmt.Sprintf("d. %s", death.String()))
    } else if burial, _ := node.Burial(); burial != nil && burial.DateRange().IsValid() {
        dateParts = append(dateParts, fmt.Sprintf("bur. %s", burial.String()))
    }